Non-trade receivable Nontrade Receivables, Current Range [Domain] Statistical Measurement [Domain] Lease extension Lessor, Operating Lease, Renewal Term Award Timing Predetermined Award Timing Predetermined [Flag] 2026 (excluding the nine months ended December 31, 2025) Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Indefinite-lived Intangible Assets [Axis] Indefinite-Lived Intangible Assets [Axis] Escrow deposits Escrow deposit, noncurrent Escrow Deposit, Noncurrent Escrow Deposit, Noncurrent Entity File Number Entity File Number Additional ‎paid-in ‎capital Additional Paid-in Capital [Member] Tabular List, Table Tabular List [Table Text Block] Initial payment received Collaborative Arrangement, Rights and Obligations, Initial Payment Received Collaborative Arrangement, Rights and Obligations, Initial Payment Received Leases [Abstract] Leases [Abstract] Licensing Agreements For Three Counties Licensing Agreements For Three Counties [Member] Licensing Agreements For Three Counties Wireless Licenses Wireless Licenses [Member] Wireless Licenses Recently Issued Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Broadband licenses granted, number of counties Broadband Licenses Granted, Number of Counties Broadband Licenses Granted, Number of Counties Shares withheld for taxes Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Net (loss) income per common share basic (in dollars per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] Related Party Transactions Related Party Transactions Disclosure [Text Block] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accounts payable and other accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Additional common stock authorized and reserved for future issuance (in shares) Common Stock, Capital Shares Reserved for Future Issuance Revenue Revenue from Contract with Customer [Text Block] CPS Energy CPS Energy [Member] CPS Energy Schedule of Reconciliation of Revenue to Net (Loss) Income Schedule of Segment Reporting Information, by Segment [Table Text Block] Restricted shares issued (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Remaining performance obligation, amount Revenue, Remaining Performance Obligation, Amount Adjustment to Compensation, Amount Adjustment to Compensation Amount Concentration risk, percentage Concentration Risk, Percentage Basis of Presentation and Use of Estimates Consolidation, Policy [Policy Text Block] Proceeds from sale of spectrum Proceeds from Sale of Intangible Assets Employee Stock Option Share-Based Payment Arrangement, Option [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Total stockholders’ equity Beginning balance Ending balance Equity, Attributable to Parent Insider Trading Policies and Procedures [Line Items] Stock compensation expense Share-Based Payment Arrangement, Expense Common stock, shares authorized (in shares) Common Stock, Shares Authorized Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Current assets Assets, Current [Abstract] Total liabilities and stockholders’ equity Liabilities and Equity Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Licensing Agreements Licensing Agreements [Member] Right of use assets modifications and renewals Rights Of Use Asset For Modifications And Renewals Rights Of Use Asset For Modifications And Renewals Sale of intangible assets Indefinite-Lived Intangible Assets, Written off Related to Sale of Business Unit LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] State State and Local Jurisdiction [Member] Cover [Abstract] Cover [Abstract] Maximum Maximum [Member] Non-cash investing activity: Non-cash investing activity: Noncash Investing Items [Abstract] Accounting Policies [Abstract] Accounting Policies [Abstract] Schedule of Future Minimum Payments Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Concentrations of Credit Risk and Significant Customers Concentration Risk Disclosure [Text Block] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Present value of net future minimum lease payments Operating Lease, Liability Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction (Loss) income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Other liabilities Other Liabilities, Noncurrent Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Accrued severance and other related charges Accrued Severance And Other Related Charges, Current Accrued Severance And Other Related Charges, Current Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount 2029 Lessee, Operating Lease, Liability, to be Paid, Year Three Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Other liabilities Increase (Decrease) in Other Noncurrent Liabilities Name Measure Name Operating lease liabilities Current liabilities - operating lease liabilities Operating Lease, Liability, Current Broadband licenses transferred, total consideration Broadband Licenses Transferred, Total Consideration Broadband Licenses Transferred, Total Consideration Deferred income tax Deferred Income Tax Liabilities, Net Document Fiscal Period Focus Document Fiscal Period Focus Gain on exchange of intangible assets, net Gain on exchange of intangible assets, net (Gain) Loss On Exchange Of Intangible Assets (Gain) Loss On Exchange Of Intangible Assets Award Timing Method Award Timing Method [Text Block] Award Type Award Type [Axis] Deferred revenue Noncurrent liabilities Contract with Customer, Liability, Noncurrent Total assets Assets Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] CASH FLOWS FROM INVESTING ACTIVITIES Cash Provided by (Used in) Investing Activity, Continuing Operation [Abstract] Trading Symbol Trading Symbol 2030 Lessee, Operating Lease, Liability, to be Paid, Year Four Entity Address, City or Town Entity Address, City or Town Other segment items Segment Reporting, Other Segment Item, Amount Intangible Assets Intangible Assets Disclosure [Text Block] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Derecognition of contingent liability related to sale of intangible assets Derecognition Of Contingent Liability Related To Sale Of Intangible Assets Derecognition Of Contingent Liability Related To Sale Of Intangible Assets Entity Emerging Growth Company Entity Emerging Growth Company Balance at the beginning of the period Balance at the end of the period Restructuring Reserve, Current Purchases of intangible assets and other related costs Payments to acquire intangible assets Payments to Acquire Intangible Assets Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Beginning balance Ending balance Balance Capitalized Contract Cost, Net Right of use assets new leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Restructuring and Related Activities [Roll Forward] Restructuring Reserve [Roll Forward] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Intangible assets Beginning balance Ending balance Indefinite-Lived Intangible Assets (Excluding Goodwill) Adjusted general and administrative General And Administrative Expense, Adjusted General And Administrative Expense, Adjusted Related Party Related Party [Member] Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Acquired Indefinite-lived Intangible Assets [Line Items] Intangible Asset, Acquired, Indefinite-Lived [Line Items] 2023 Stock Plan 2023 Stock Plan [Member] 2023 Stock Plan Plan Name [Axis] Plan Name [Axis] Gain on sale of intangible assets, net Gain on sale of intangible assets, net Gain on sale of intangible assets, net Gain On Sale Of Intangible Assets Gain On Sale Of Intangible Assets PEO PEO [Member] Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Consulting fees Deferred Compensation Arrangement with Individual, Compensation Expense Stock option exercises Stock Issued During Period, Value, Stock Options Exercised Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Income Tax Disclosure [Line Items] Income Tax Disclosure [Line Items] Income Tax Disclosure [Line Items] Accumulated ‎deficit Retained Earnings [Member] Non-trade receivable Increase (Decrease) In Nontrade Receivables Increase (Decrease) In Nontrade Receivables Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Income Tax Authority [Axis] Income Tax Jurisdiction [Axis] Schedule of Accrued Severance And Other Related Charges Schedule of Accrued Liabilities [Table Text Block] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Cash compensation Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount Per Month Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount Per Month Cash and cash equivalents and restricted cash at beginning of the period Cash and cash equivalents and restricted cash at end of the period Total cash and cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Income Statement [Abstract] Income tax (benefit) expense Income tax (benefit) expense Income Tax Expense (Benefit) Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Product and Service [Domain] Product and Service [Domain] Customer Concentration Risk Customer Concentration Risk [Member] Xcel Energy Xcel Energy Services Inc. [Member] Xcel Energy Services Inc. Schedule of Contract Assets Contract with Customer, Contract Asset [Table Text Block] Contract with Customer, Contract Asset [Table Text Block] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Employer contribution amount Defined Contribution Plan, Employer Discretionary Contribution Amount Accrued Severance and Other Related Charges Restructuring and Related Activities Disclosure [Text Block] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Proceeds from stock option exercises Proceeds from Stock Options Exercised Motorola Motorola [Member] Motorola [Member] City Area Code City Area Code Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Lower Colorado River Authority (LCRA) Lower Colorado River Authority (LCRA) [Member] Lower Colorado River Authority (LCRA) Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] General and administrative General and Administrative Expense Gain on exchange of intangible assets, net Gain On Exchange Of Intangible Assets Gain On Exchange Of Intangible Assets Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Net cash used in operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Related Party Transactions [Abstract] Related Party Transactions [Abstract] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Subsequent Event Subsequent Event [Member] Total operating lease cost Lease, Cost Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Schedule of Total Lease Cost Lease, Cost [Table Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Equity Components [Axis] Equity Components [Axis] Nature of Operations and Basis of Presentation Nature of Operations [Text Block] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Concentration Risk [Table] Concentration Risk [Table] Lower Colorado River Authority Lower Colorado River Authority [Member] Lower Colorado River Authority [Member] Number of reportable segments Number of Reportable Segments Long-term contingent consideration Collaborative Arrangement, Rights And Obligations, Contingent Consideration, Noncurrent Collaborative Arrangement, Rights And Obligations, Contingent Consideration, Noncurrent SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION Supplemental Cash Flow Information [Abstract] Other Performance Measure, Amount Other Performance Measure, Amount Contract with Customer, Liability [Abstract] Contract with Customer, Liability [Abstract] Entity Address, State or Province Entity Address, State or Province Related Party [Domain] Related and Nonrelated Parties [Domain] Total current liabilities Liabilities, Current Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Individual: Individual [Axis] Income Tax Authority [Domain] Income Tax Jurisdiction [Domain] Agreement term (in years) Collaborative Arrangement, Rights and Obligations, Agreement Term Collaborative Arrangement, Rights and Obligations, Agreement Term Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Remaining performance obligation, expected timing of satisfaction, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Licenses exchanged Exchanges - licenses surrendered Indefinite-Lived Intangible Assets, Exchanged Licenses Surrendered Indefinite-Lived Intangible Assets, Exchanged Licenses Surrendered Document Fiscal Year Focus Document Fiscal Year Focus Stockholders’ Equity Shareholders' Equity and Share-Based Payments [Text Block] Right of use assets, net Non-current assets - right of use assets, net Operating Lease, Right-of-Use Asset Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Entity Interactive Data Current Entity Interactive Data Current CASH FLOWS FROM OPERATING ACTIVITIES Cash Provided by (Used in) Operating Activity, Continuing Operation [Abstract] Plan Name [Domain] Plan Name [Domain] Stock option exercises (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Equity [Abstract] Equity [Abstract] Consulting services minimum period Deferred Compensation Arrangement with Individual, Requisite Service Period Significant segment expenses and other segment items Segment Reconciliation [Abstract] Segment Reporting Segment Reporting Disclosure [Text Block] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Adjusted sales and support Selling And Marketing Expense, Adjusted Selling And Marketing Expense, Adjusted Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] After 2030 Lessee, Operating Lease, Liability, to be Paid, after Year Four Lessee, Operating Lease, Liability, to be Paid, after Year Four Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Contingent liability Business Combination, Contingent Consideration, Liability Depreciation and amortization Depreciation, Depletion and Amortization Other assets Other Assets, Noncurrent Customer [Domain] Customer [Domain] Entity Central Index Key Entity Central Index Key PEO Name PEO Name Spectrum revenue Total spectrum revenue Spectrum revenue Revenues Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Arrangement Duration Trading Arrangement Duration Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Deferred revenue Less amount classified as current liabilities Contract with Customer, Liability, Current Segments [Axis] Segments [Axis] Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Retirement of common stock (in shares) Stock Repurchased and Retired During Period, Shares Contingent liability Business Combination, Contingent Consideration, Liability, Current Number of states in service territory Collaborative Arrangement, Rights and Obligations, Number Of States In Service Territory Collaborative Arrangement, Rights and Obligations, Number Of States In Service Territory Spectrum revenue Spectrum [Member] Spectrum [Member] ASSETS Assets [Abstract] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Stockholders’ equity Equity, Attributable to Parent [Abstract] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Schedule of Acquired Indefinite-lived Intangible Assets by Major Class [Table] Schedule of Acquired Indefinite-Lived Intangible Assets by Major Class [Table] Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Total cost to repurchase Treasury Stock, Value, Acquired, Cost Method Product development Research and Development Expense Shares withheld for taxes (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Operating lease liabilities Non-current liabilities - operating lease liabilities Operating Lease, Liability, Noncurrent Fair Value as of Grant Date Award Grant Date Fair Value Entity Registrant Name Entity Registrant Name Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Exchanges - licenses received Indefinite-Lived Intangible Assets, Exchanged Licenses Received Indefinite-Lived Intangible Assets, Exchanged Licenses Received Accrued severance and other related charges Increase (Decrease) in Accrued Severance and Other Related Charges Increase (Decrease) in Accrued Severance and Other Related Charges Add: dilutive effect of stock options and restricted stock units (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Awards issued (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Schedule of Additional Lease Cost Information Additional Lease, Cost [Table Text Block] Additional Lease, Cost [Table Text Block] Operating expenses Costs and Expenses Related Party Transaction [Line Items] Related Party Transaction [Line Items] Document Quarterly Report Document Quarterly Report Schedule of Supplemental Balance Sheet Information Supplemental Lease Information [Table Text Block] Supplemental Lease Information [Table Text Block] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Counterparty Name [Domain] Counterparty Name [Domain] 2028 Lessee, Operating Lease, Liability, to be Paid, Year Two Number of operating segments Number of Operating Segments Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Related Party [Axis] Related and Nonrelated Parties [Axis] Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Restatement Determination Date: Restatement Determination Date [Axis] Non-PEO NEO Non-PEO NEO [Member] Interest income Interest Income, Other Escrow deposits Escrow deposit, current Escrow Deposit, Current Escrow Deposit, Current Name Trading Arrangement, Individual Name All Award Types Award Type [Domain] 2027 Lessee, Operating Lease, Liability, to be Paid, Year One Equity Awards Adjustments Equity Awards Adjustments [Member] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Compensation Amount Outstanding Recovery Compensation Amount Milestone payment received Collaborative Arrangement, Rights and Obligations, Milestone Payment Received Collaborative Arrangement, Rights and Obligations, Milestone Payment Received Schedule of Contract Liabilities Contract with Customer, Contract Liabilities [Table Text Block] Contract with Customer, Contract Liabilities [Table Text Block] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Revenue recognized Contract with Customer, Liability, Revenue Recognized MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Name Awards Close in Time to MNPI Disclosures, Individual Name Cash payments Payments for Restructuring Escrow Deposits Other Assets Disclosure [Text Block] Weighted-average common shares: Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Escrow deposits Escrow Deposit Contingent liability Decrease in contingent liability Business Combination, Contingent Consideration, Change in Contingent Consideration, Liability, Increase (Decrease) Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Contingencies and Guaranty Commitments Disclosure [Text Block] Stock compensation expense APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Sales and support Selling and Marketing Expense Excise tax expense Excise and Sales Taxes Deferred tax liability Deferred Tax Liabilities, Gross Segments [Domain] Segments [Domain] Schedule of Indefinite-Lived Intangible Assets Schedule of Indefinite-Lived Intangible Assets [Table Text Block] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] All Customers Except TECO All Customers Except Tampa Electric Company [Member] All Customers Except Tampa Electric Company Minimum Minimum [Member] Evergy Evergy [Member] Evergy [Member] Company Selected Measure Name Company Selected Measure Name Net additions Contract with Customer, Liability, Increase (Decrease) for Contract Acquired in Business Combination Effective income tax rate, percentage Effective Income Tax Rate Reconciliation, Adjusted, Percent Effective Income Tax Rate Reconciliation, Adjusted, Percent Preferred stock, $0.0001 par value per share, 10,000,000 shares authorized and no shares outstanding at December 31, 2025 and March 31, 2025 Preferred Stock, Value, Issued Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Operating leases paid Operating Lease, Payments Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Narrowband spectrum licenses received in connection with the LCRA Agreement Fair Value Of Licenses Acquired Fair Value Of Licenses Acquired All Executive Categories All Executive Categories [Member] Common stock, $0.0001 par value per share, 100,000,000 shares authorized and 18,729,705 shares issued and outstanding at December 31, 2025 and 18,612,804 shares issued and outstanding at March 31, 2025 Common Stock, Value, Issued Weighted-average common shares used to compute diluted net (loss) income per share (in shares) Diluted weighted-average common shares (in shares) Weighted Average Number of Shares Outstanding, Diluted Segments Segment Reporting, Policy [Policy Text Block] Commitments and contingencies (See Note 12) Commitments and Contingencies Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Short-term contingent consideration Collaborative Arrangement, Rights And Obligations, Contingent Consideration, Current Collaborative Arrangement, Rights And Obligations, Contingent Consideration, Current Consideration received Broadband Licenses Granted, Consideration Broadband Licenses Granted, Consideration Entity Small Business Entity Small Business Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] TECO Tampa Electric Company [Member] Tampa Electric Company Broadband licenses granted estimated consideration Broadband Licenses Granted, Estimated Consideration Broadband Licenses Granted, Estimated Consideration Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Document Transition Report Document Transition Report Broadband license narrowband spectrum licenses previously received Broadband License Sale, Assets Allocated From Previously Received, Amount Broadband License Sale, Assets Allocated From Previously Received, Amount Underlying Securities Award Underlying Securities Amount Concentration Risk [Line Items] Concentration Risk [Line Items] Licensing Agreements For Four Counties Licensing Agreements For Four Counties [Member] Licensing Agreements For Four Counties Equity Component [Domain] Equity Component [Domain] Document Period End Date Document Period End Date PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Income Tax Disclosure [Table] Income Tax Disclosure [Table] Income Tax Disclosure [Table] Income Taxes Income Tax Disclosure [Text Block] Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Operating lease liabilities Increase (Decrease) in Operating Lease Liability Average price paid per share (in dollars per share) Shares Acquired, Average Cost Per Share Risks and Uncertainties [Abstract] Risks and Uncertainties [Abstract] Document Type Document Type Net (Loss) Income Per Share of Common Stock Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Additional paid-in capital Additional Paid in Capital Product and Service [Axis] Product and Service [Axis] Asset Acquisition [Domain] Asset Acquisition [Domain] Contingent consideration, liability, current Asset Acquisition, Contingent Consideration, Liability, Current Collaborative Arrangement, Transaction with Party to Collaborative Arrangement Collaborative Arrangement, Transaction with Party to Collaborative Arrangement [Member] All Individuals All Individuals [Member] Purchases of equipment Payments to Acquire Property, Plant, and Equipment Lease [Line Items] Lease [Line Items] Lease [Line Items] Consideration transferred Asset Acquisition, Consideration Transferred Name Forgone Recovery, Individual Name Cash accruals Restructuring Reserve, Accrual Adjustment Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Revenue from Contract with Customer [Roll Forward] Revenue from Contract with Customer [Roll Forward] Revenue from Contract with Customer Stock repurchase program, authorized amount Share Repurchase Program, Authorized, Amount SDG&E San Diego Gas Electric Company [Member] San Diego Gas & Electric Company [Member] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Payments of withholding tax on net issuance of restricted stock Payment, Tax Withholding, Share-Based Payment Arrangement Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Deferred gain on sale of intangible assets Deferred Gain On Sale Of Intangible Assets, Cumulative Deferred Gain On Sale Of Intangible Assets, Cumulative Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Additions Capitalized Contract Cost, Additions Capitalized Contract Cost, Additions Network equipment provided in exchange for wireless licenses Contribution Of Property, In Exchange For Intangible Assets Contribution Of Property, In Exchange For Intangible Assets Current liabilities Liabilities, Current [Abstract] Acquisitions Indefinite-Lived Intangible Assets Acquired Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Beginning balance (in shares) Ending balance (in shares) Shares, Outstanding Deferred broadband costs Deferred Costs, Noncurrent Indefinite-Lived Intangible Assets [Roll Forward] Indefinite-Lived Intangible Assets [Roll Forward] Capitalized Contract Cost, Net, Classified [Abstract] Capitalized Contract Cost, Net, Classified [Abstract] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Table] Net (loss) income per common share diluted (in dollars per share) Earnings Per Share, Diluted Right of use assets Increase (Decrease) in Operating Right of Use Assets Increase (Decrease) in Operating Right of Use Assets Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Title of 12(b) Security Title of 12(b) Security Cash paid during the period: Income Taxes Paid, Net [Abstract] Amortization Capitalized Contract Cost, Amortization Earnings Per Share [Abstract] Earnings Per Share [Abstract] Retirement of common stock Stock Repurchased and Retired During Period, Value Deferred revenue Increase (Decrease) in Contract with Customer, Liability Federal Domestic Tax Jurisdiction [Member] Amount representing interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Number of shares repurchased and retired (in shares) Treasury Stock, Shares, Acquired Taxes paid, including excise tax Income Taxes Paid, Net Collaborative Arrangement and Arrangement Other than Collaborative [Table] Collaborative Arrangement and Arrangement Other than Collaborative [Table] Award Timing Disclosures [Line Items] Total future minimum lease payments Lessee, Operating Lease, Liability, to be Paid Federal and state Federal And State Jurisdiction [Member] Federal and state jurisdiction. Less amount classified as current assets Capitalized Contract Cost, Net, Current Net (loss) income Net (loss) income Net income (loss) Net (loss) income: Net Income (Loss) Attributable to Parent Subsequent Event [Table] Subsequent Event [Table] Expiration Date Trading Arrangement Expiration Date Ameren Corporation Ameren Corporation [Member] Ameren Corporation [Member] Property and equipment, net Property, Plant and Equipment, Net Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Severance and other related charges Restructuring Charges Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Repurchases of common stock Payments for Repurchase of Common Stock Adoption Date Trading Arrangement Adoption Date Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Entity Current Reporting Status Entity Current Reporting Status Adjusted product development Research And Development Expense, Adjusted Research And Development Expense, Adjusted Customer [Axis] Customer [Axis] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] CASH FLOWS FROM FINANCING ACTIVITIES Cash Provided by (Used in) Financing Activity, Continuing Operation [Abstract] (Loss) income from operations Operating Income (Loss) Reportable Segment Reportable Segment [Member] Reportable Segment Proceeds from nontrade receivable Proceeds from Collection of Other Receivables Capitalized change in estimated asset retirement obligations Asset Retirement Obligation, Capitalized Change In Estimate Asset Retirement Obligation, Capitalized Change In Estimate Accumulated deficit Retained Earnings (Accumulated Deficit) Schedule of Share Repurchase Activity Class of Treasury Stock [Table Text Block] Loss from disposal of long-lived assets, net Loss from disposal of long-lived assets, net Gain (Loss) on Disposition of Property Plant Equipment Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Executive Category: Executive Category [Axis] Impairment Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill) Current Fiscal Year End Date Current Fiscal Year End Date Subsequent Event Type [Domain] Subsequent Event Type [Domain] Due to related parties Increase (Decrease) in Due to Related Parties Changes in operating assets and liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract] Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Shares available (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Statement [Table] Statement [Table] Other income Other Nonoperating Income (Expense) Deferred income taxes Deferred Income Tax Expense (Benefit) Adjustments to reconcile net income (loss) to net cash used in operating activities Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Revenue Benchmark Revenue Benchmark [Member] Beginning balance Ending balance Balance Contract with customer liability Contract with Customer, Liability CASH AND CASH EQUIVALENTS AND RESTRICTED CASH Cash and Cash Equivalents [Abstract] Spectrum receivable Spectrum Receivable Costs, Current Spectrum Receivable Costs, Current Antidilutive securities excluded from computation of earnings per share, amount (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount All Adjustments to Compensation All Adjustments to Compensation [Member] Accounts payable and other accrued expenses Accounts Payable and Accrued Liabilities, Current Amendment Flag Amendment Flag Other Commitments [Table] Other Commitments [Table] Leases Lessee, Operating Leases [Text Block] Termination Date Trading Arrangement Termination Date Net cash used in financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Measure: Measure [Axis] Weighted average incremental borrowing rate - operating lease liabilities Operating Lease, Weighted Average Discount Rate, Percent Weighted-average common shares used to compute basic net (loss) income per share (in shares) Basic weighted-average shares (in shares) Weighted Average Number of Shares Outstanding, Basic Stock repurchase program, remaining repurchase amount Share Repurchase Program, Remaining Authorized, Amount Reduction of intangible assets Indefinite-Lived Intangible Assets, Period Increase (Decrease) Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Subsequent Events [Abstract] Segment Reporting [Abstract] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Gain on exchange of intangible assets, net Gain From Disposal Of Intangible Assets Gain From Disposal Of Intangible Assets Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Entity Tax Identification Number Entity Tax Identification Number Noncurrent assets Capitalized Contract Cost, Net, Noncurrent Asset Acquisition [Axis] Asset Acquisition [Axis] Restructuring and Related Activities [Abstract] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares issued (in shares) Common Stock, Shares, Issued Weighted average term - operating lease liabilities Operating Lease, Weighted Average Remaining Lease Term Oncor Electric Delivery Company LLC Oncor Electric Delivery Company LLC [Member] Oncor Electric Delivery Company LLC Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Increase in deposit assets Increase (Decrease) in Deposit Assets Subsequent Events Subsequent Events [Text Block] Insider Trading Arrangements [Line Items] Security Exchange Name Security Exchange Name Total liabilities Liabilities Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-Lived Intangible Assets, Major Class Name [Domain] Operating expenses Operating Expenses [Abstract] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Due to related parties Other Liabilities, Current Statement [Line Items] Statement [Line Items] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Lease [Table] Lease [Table] Lease [Table] Cash and cash equivalents Cash and Cash Equivalent Counterparty Name [Axis] Counterparty Name [Axis] Subsequent Event [Line Items] Subsequent Event [Line Items] Commitments And Contingencies [Line Items] Commitments And Contingencies [Line Items] Commitments And Contingencies [Line Items] Common ‎stock Common Stock [Member] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Net change in cash and cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation