Consolidated Statement of Stockholders’ Equity - USD ($) $ in Thousands		Total	Common ‎stock	Additional ‎paid-in ‎capital	Accumulated ‎deficit
Beginning balance (in shares) at Mar. 31, 2021			17,670,000
Beginning balance at Mar. 31, 2021		$ 212,508	$ 2	$ 472,854	$ (260,348)
Equity based compensation		3,296		3,296
Restricted shares issued (in shares)			73,000
Stock option exercises (in shares)	[1]		295,000
Stock option exercises	[1]	6,371		6,371
Retirement of common stock (in shares)	[1]		(20,000)
Retirement of common stock	[1]	(1,000)			(1,000)
Net loss		(12,010)			(12,010)
Ending balance (in shares) at Jun. 30, 2021			18,018,000
Ending balance at Jun. 30, 2021		209,165	$ 2	482,521	(273,358)
Beginning balance (in shares) at Mar. 31, 2022			18,378,000
Beginning balance at Mar. 31, 2022		186,298	$ 2	500,125	(313,829)
Equity based compensation		4,128		4,128
Restricted shares issued (in shares)			104,000
Stock option exercises (in shares)			37,000
Stock option exercises		872		872
Motorola shares (in shares)			500,000
Shares withheld for taxes (in shares)			(19,000)
Shares withheld for taxes		(827)		(827)
Retirement of common stock (in shares)			(56,000)
Retirement of common stock		(2,725)			(2,725)
Net loss		(13,196)			(13,196)
Ending balance (in shares) at Jun. 30, 2022			18,944,000
Ending balance at Jun. 30, 2022		$ 174,550	$ 2	$ 504,298	$ (329,750)

[1] Includes approximately $1.0 million, or 20,132 shares, received associated with a non-cash exercise of stock options and subsequent retirement. See Note 7 Stockholders’ Equity.