Condensed Consolidated Statements of Changes in Stockholders’ Deficit (unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Mar. 31, 2020		35,135,520
Beginning balance at Mar. 31, 2020	$ (21,169)	$ 4	$ 127,683	$ (148,102)	$ (754)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock options exercised (in shares)	0
Stock-based compensation	$ 104		104
Other comprehensive loss	(17)				(17)
Net loss	(2,270)			(2,270)
Ending balance (in shares) at Jun. 30, 2020		35,135,520
Ending balance at Jun. 30, 2020	$ (23,352)	$ 4	127,787	(150,372)	(771)
Beginning balance (in shares) at Mar. 31, 2021	40,531,996	40,531,996
Beginning balance at Mar. 31, 2021	$ (25,055)	$ 4	144,201	(168,403)	(857)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock options exercised (in shares)	31,925	31,925
Stock options exercised	$ 134		134
Restricted stocks issued (in shares)		1,000
Issuance of common stock, net (in shares)		97,099
Issuance of common stock (Note 9)	500		500
Stock-based compensation	497		497
Other comprehensive loss	(27)				(27)
Net loss	$ (7,052)			(7,052)
Ending balance (in shares) at Jun. 30, 2021	40,662,020	40,662,020
Ending balance at Jun. 30, 2021	$ (31,003)	$ 4	$ 145,332	$ (175,455)	$ (884)