Summary of Significant Accounting Policies	6 Months Ended
Sep. 30, 2021
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	3. Summary of Significant Accounting Policies Basis of Presentation and Use of Estimates The unaudited consolidated financial statements and accompanying notes are prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information. Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), certain information and footnote disclosures normally included in annual consolidated financial statements prepared in accordance with U.S. GAAP have been condensed or omitted. Because certain information and footnote disclosures have been condensed or omitted, these unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes in the Company’s Annual Report on Form 10-K for the fiscal year ended March 31, 2021, as filed on June 15, 2021 with the SEC. In the Company’s opinion all normal and recurring adjustments considered necessary for a fair presentation of the financial position, results of operations and cash flows for the periods presented have been included. The Company believes that the disclosures made in the unaudited consolidated interim financial statements are adequate to make the information not misleading. The results of operations for the interim periods presented are not necessarily indicative of the results for the year. The Company is also required to make certain estimates with regard to the valuation of awards and forfeiture rates for its share-based award programs. New estimates in the period relate to determining the Company’s estimated incremental borrowing rate in recognizing right of use assets and operating lease liabilities. Estimates and assumptions are reviewed periodically, and the effects of revisions are reflected in the financial statements in the applicable period. Accordingly, actual results could materially differ from those estimates. The accompanying consolidated financial statements include the accounts of the Company and its subsidiaries, including PDV Spectrum Holding Company, LLC formed in April 2014. All significant intercompany accounts and transactions have been eliminated in consolidation. Correction of Immaterial Errors In connection with preparing its financial statements for the year ended March 31, 2021, the Company determined that it incorrectly presented stock-based compensation and loss on disposal of long-lived assets, net in its Consolidated Statement of Operations for the three and six months ended September 30, 2020. The Company previously reported stock compensation expense as a separate line item in the Consolidated Statement of Operations. Stock compensation expense should have been included in the same income statement line or lines as the cash compensation paid to the individuals receiving the stock-based awards such as general and administrative costs, product development and sales and support. For the three months ended September 30, 2020, the separate line item of $8.6 million in stock compensation expense has been changed and split out to report as $8.4 million in general and administrative, $0.2 million in product development, and $62,000 in sales and support in the Consolidated Statement of Operations. For the six months ended September 30, 2020, the separate line item of $10.6 million in stock compensation expense has been changed and split out to report as $10.2 million in general and administrative, $0.3 million in product development, and $0.1 million in sales and support in the Consolidated Statement of Operations. The following table is a comparison of the reported results of operations for the three and six months ended September 30, 2020 as a result of the correction of immaterial errors (in thousands): For the three months ended September 30, 2020 As Originally Reported Impact of Prior Period Errors As RevisedConsolidated Statement of Operations General and administrative 5,582 $8,373 13,955Product development 805 183 988Sales and support 631 62 693Stock compensation expense 8,618 (8,618) — For the six months ended September 30, 2020 As Originally Reported Impact of Prior Period Errors As Revised General and administrative $11,320 $10,179 $21,499Product development 1,497 292 1,789Sales and support 1,292 102 1,394Stock compensation expense 10,573 (10,573) — Intangible Assets Intangible assets are wireless licenses that are used to provide the Company with the exclusive right to utilize designated radio frequency spectrum to provide wireless communication services. While licenses are issued for only a fixed time, generally ten to fifteen years, such licenses are subject to renewal by the FCC. License renewals have occurred routinely and at nominal cost in the past. There are currently no legal, regulatory, contractual, competitive, economic or other factors that limit the useful life of the Company’s wireless licenses. As a result, the Company has determined that the wireless licenses should be treated as an indefinite-lived intangible asset. The Company will evaluate the useful life determination for its wireless licenses each year to determine whether events and circumstances continue to support their treatment as an indefinite useful life asset. Historically, wireless licenses were tested for impairment on an aggregate basis, consistent with the Company’s dispatch business at a national level. Effective in the year ended March 31, 2021, (“Fiscal 2021”), the Company determined the unit of accounting for impairment testing purposes should be based on geographical markets and accordingly, tested the wireless licenses for impairment based on these individual markets. The change in the unit of accounting was due to the Company’s expected use and marketability of its wireless licenses to support broadband operations at an individual market level as a result of the Report and Order. Due to the change in the unit of accounting, the Company performed a step one quantitative impairment test in Fiscal 2021 to determine if the fair value of the wireless licenses exceed the carrying value at the geographical market level. The estimated fair values of each unit of accounting were determined using a market-based approach based on the 600 MHz auction price as noted in the Report and Order. The Company also performed a step zero qualitative assessment on an aggregate basis to test the wireless licenses for impairment due to the change in the unit of accounting in Fiscal 2021. There are no triggering events indicating impairment in the six months ended September 30, 2021. Long-Lived Asset and Right of Use Assets Impairment The Company evaluates long-lived assets, including right of use assets, other than intangible assets with indefinite lives, for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset group may not be recoverable. Asset groups are determined at the lowest level for which identifiable cash flows are largely independent from cash flows of other groups of assets and liabilities. When the carrying amount of the asset groups are not recoverable and exceeds its fair value, an impairment loss is recognized equal to the excess of the asset group’s carrying value over the estimated fair value. During the three and six months ended September 30, 2021, the Company recorded $0.1 million for both periods in non-cash impairment charges to reduce the carrying values to zero for long-lived assets consisting of network equipment. During the six months ended September 30, 2020, the Company recorded a $29,000 non-cash impairment charge to reduce the carrying values to zero for long-lived assets consisting of network site costs. There was no impairment charge for the three months ended September 30, 2020. Net Loss Per Share of Common Stock Basic net loss per common share is calculated by dividing the net loss attributable to common stockholders by the weighted-average number of common shares outstanding during the period, without consideration for potentially dilutive securities. For purposes of the diluted net loss per share calculation, preferred stock, stock options, restricted stock and warrants are considered to be potentially dilutive securities. Because the Company has reported a net loss for the three and six months ended September 30, 2021 and 2020, respectively, diluted net loss per common share is the same as basic net loss per common share for those periods. Common stock equivalents resulting from potentially dilutive securities approximated 1,454,000 and 1,540,000 at September 30, 2021 and 2020, respectively, and have not been included in the dilutive weighted average shares of common stock outstanding, as their effects are anti-dilutive. Recently Issued Accounting Pronouncements In June 2016, the FASB issued ASC 326, Financial Instruments - Credit Losses and has subsequently modified several areas of the standard in order to provide additional clarity and improvements. The new standard requires entities to use a Current Expected Credit Loss impairment model based on expected losses rather than incurred losses. Under this model, an entity would recognize an impairment allowance equal to its current estimate of all contractual cash flows that the entity does not expect to collect from financial assets measured at amortized cost within the scope of the standard. The entity's estimate would consider relevant information about past events, current conditions and reasonable and supportable forecasts, which will result in recognition of lifetime expected credit losses. As a smaller reporting company, the standard will be effective for the Company's fiscal year beginning April 2023, including interim reporting periods within that fiscal year, although early adoption is permitted. The Company is evaluating the potential impact that ASC 326 and subsequent modifications may have on its consolidated financial statements. Other accounting standards that have been issued or proposed by the FASB or other standard-setting bodies that do not require adoption until a future date are not expected to have a material impact on the Company’s consolidated financial statements upon adoption.

Summary of Significant Accounting Policies

6 Months Ended

Sep. 30, 2021

Summary of Significant Accounting Policies [Abstract]

Summary of Significant Accounting Policies

3. Summary of Significant Accounting Policies Basis of Presentation and Use of Estimates The unaudited consolidated financial statements and accompanying notes are prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information. Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), certain information and footnote disclosures normally included in annual consolidated financial statements prepared in accordance with U.S. GAAP have been condensed or omitted. Because certain information and footnote disclosures have been condensed or omitted, these unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes in the Company’s Annual Report on Form 10-K for the fiscal year ended March 31, 2021, as filed on June 15, 2021 with the SEC. In the Company’s opinion all normal and recurring adjustments considered necessary for a fair presentation of the financial position, results of operations and cash flows for the periods presented have been included. The Company believes that the disclosures made in the unaudited consolidated interim financial statements are adequate to make the information not misleading. The results of operations for the interim periods presented are not necessarily indicative of the results for the year. The Company is also required to make certain estimates with regard to the valuation of awards and forfeiture rates for its share-based award programs. New estimates in the period relate to determining the Company’s estimated incremental borrowing rate in recognizing right of use assets and operating lease liabilities. Estimates and assumptions are reviewed periodically, and the effects of revisions are reflected in the financial statements in the applicable period. Accordingly, actual results could materially differ from those estimates. The accompanying consolidated financial statements include the accounts of the Company and its subsidiaries, including PDV Spectrum Holding Company, LLC formed in April 2014. All significant intercompany accounts and transactions have been eliminated in consolidation. Correction of Immaterial Errors In connection with preparing its financial statements for the year ended March 31, 2021, the Company determined that it incorrectly presented stock-based compensation and loss on disposal of long-lived assets, net in its Consolidated Statement of Operations for the three and six months ended September 30, 2020. The Company previously reported stock compensation expense as a separate line item in the Consolidated Statement of Operations. Stock compensation expense should have been included in the same income statement line or lines as the cash compensation paid to the individuals receiving the stock-based awards such as general and administrative costs, product development and sales and support. For the three months ended September 30, 2020, the separate line item of $8.6 million in stock compensation expense has been changed and split out to report as $8.4 million in general and administrative, $0.2 million in product development, and $62,000 in sales and support in the Consolidated Statement of Operations. For the six months ended September 30, 2020, the separate line item of $10.6 million in stock compensation expense has been changed and split out to report as $10.2 million in general and administrative, $0.3 million in product development, and $0.1 million in sales and support in the Consolidated Statement of Operations. The following table is a comparison of the reported results of operations for the three and six months ended September 30, 2020 as a result of the correction of immaterial errors (in thousands): For the three months ended September 30, 2020 As Originally Reported Impact of Prior Period Errors As RevisedConsolidated Statement of Operations General and administrative 5,582 $8,373 13,955Product development 805 183 988Sales and support 631 62 693Stock compensation expense 8,618 (8,618) — For the six months ended September 30, 2020 As Originally Reported Impact of Prior Period Errors As Revised General and administrative $11,320 $10,179 $21,499Product development 1,497 292 1,789Sales and support 1,292 102 1,394Stock compensation expense 10,573 (10,573) — Intangible Assets Intangible assets are wireless licenses that are used to provide the Company with the exclusive right to utilize designated radio frequency spectrum to provide wireless communication services. While licenses are issued for only a fixed time, generally ten to fifteen years, such licenses are subject to renewal by the FCC. License renewals have occurred routinely and at nominal cost in the past. There are currently no legal, regulatory, contractual, competitive, economic or other factors that limit the useful life of the Company’s wireless licenses. As a result, the Company has determined that the wireless licenses should be treated as an indefinite-lived intangible asset. The Company will evaluate the useful life determination for its wireless licenses each year to determine whether events and circumstances continue to support their treatment as an indefinite useful life asset. Historically, wireless licenses were tested for impairment on an aggregate basis, consistent with the Company’s dispatch business at a national level. Effective in the year ended March 31, 2021, (“Fiscal 2021”), the Company determined the unit of accounting for impairment testing purposes should be based on geographical markets and accordingly, tested the wireless licenses for impairment based on these individual markets. The change in the unit of accounting was due to the Company’s expected use and marketability of its wireless licenses to support broadband operations at an individual market level as a result of the Report and Order. Due to the change in the unit of accounting, the Company performed a step one quantitative impairment test in Fiscal 2021 to determine if the fair value of the wireless licenses exceed the carrying value at the geographical market level. The estimated fair values of each unit of accounting were determined using a market-based approach based on the 600 MHz auction price as noted in the Report and Order. The Company also performed a step zero qualitative assessment on an aggregate basis to test the wireless licenses for impairment due to the change in the unit of accounting in Fiscal 2021. There are no triggering events indicating impairment in the six months ended September 30, 2021. Long-Lived Asset and Right of Use Assets Impairment The Company evaluates long-lived assets, including right of use assets, other than intangible assets with indefinite lives, for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset group may not be recoverable. Asset groups are determined at the lowest level for which identifiable cash flows are largely independent from cash flows of other groups of assets and liabilities. When the carrying amount of the asset groups are not recoverable and exceeds its fair value, an impairment loss is recognized equal to the excess of the asset group’s carrying value over the estimated fair value. During the three and six months ended September 30, 2021, the Company recorded $0.1 million for both periods in non-cash impairment charges to reduce the carrying values to zero for long-lived assets consisting of network equipment. During the six months ended September 30, 2020, the Company recorded a $29,000 non-cash impairment charge to reduce the carrying values to zero for long-lived assets consisting of network site costs. There was no impairment charge for the three months ended September 30, 2020. Net Loss Per Share of Common Stock Basic net loss per common share is calculated by dividing the net loss attributable to common stockholders by the weighted-average number of common shares outstanding during the period, without consideration for potentially dilutive securities. For purposes of the diluted net loss per share calculation, preferred stock, stock options, restricted stock and warrants are considered to be potentially dilutive securities. Because the Company has reported a net loss for the three and six months ended September 30, 2021 and 2020, respectively, diluted net loss per common share is the same as basic net loss per common share for those periods. Common stock equivalents resulting from potentially dilutive securities approximated 1,454,000 and 1,540,000 at September 30, 2021 and 2020, respectively, and have not been included in the dilutive weighted average shares of common stock outstanding, as their effects are anti-dilutive. Recently Issued Accounting Pronouncements In June 2016, the FASB issued ASC 326, Financial Instruments - Credit Losses and has subsequently modified several areas of the standard in order to provide additional clarity and improvements. The new standard requires entities to use a Current Expected Credit Loss impairment model based on expected losses rather than incurred losses. Under this model, an entity would recognize an impairment allowance equal to its current estimate of all contractual cash flows that the entity does not expect to collect from financial assets measured at amortized cost within the scope of the standard. The entity's estimate would consider relevant information about past events, current conditions and reasonable and supportable forecasts, which will result in recognition of lifetime expected credit losses. As a smaller reporting company, the standard will be effective for the Company's fiscal year beginning April 2023, including interim reporting periods within that fiscal year, although early adoption is permitted. The Company is evaluating the potential impact that ASC 326 and subsequent modifications may have on its consolidated financial statements. Other accounting standards that have been issued or proposed by the FASB or other standard-setting bodies that do not require adoption until a future date are not expected to have a material impact on the Company’s consolidated financial statements upon adoption.