Summary of Significant Accounting Policies (Details) - USD ($)	6 Months Ended	12 Months Ended
Sep. 30, 2019	Mar. 31, 2019	Apr. 01, 2019
Summary Of Significant Accounting Policies [Line Items]
Wireless licenses term	10 years
Lease term	10 years
Tax benefits attributed to share-based compensation expense	$ 0
Potentially dilutive securities outstanding but excluded from computation of earnings per share	1,409,000	1,179,000
Right of use assets, net	$ 7,217,000		$ 7,100,000
Lease liability	$ 9,531,000		9,400,000
Deferred rent liability			$ 2,300,000
Weighted average incremental borrowing rate	13.00%		13.00%
Accounting Standards Update 2018-07 [Member]
Summary Of Significant Accounting Policies [Line Items]
Decrease to accumulated deficit			$ 188,000
TeamConnect LLC [Member]
Summary Of Significant Accounting Policies [Line Items]
Ownership percentage	19.50%

Summary Of Significant Accounting Policies [Line Items]

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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The cumulative difference between the rental payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense over the term of the leased property by the lessor or lessee, respectively.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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