UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock, Shares	Common Stock, Additional Paid-in Capital	Treasury Stock	Retained Deficit
Shareholders' equity, beginning of period at Mar. 31, 2022	$ 65,100		$ 158,419	$ (36,239)	$ (57,080)
Shareholders' equity, beginning of period (Shares) at Mar. 31, 2022		31,097,872
Exercise of stock options for cash	54		54
Exercise of stock options for cash (shares)		26,646
Shares issued under Employee Stock Purchase Plan	$ 1			1
Shares issued under Employee Stock Purchase Plan (shares)	443	443
Stock-based compensation	$ 254		254
Stock-based compensation (shares)		125,744
Employee tax withholdings on stock-based compensation	(2)			(2)
Employee tax withholdings on stock-based compensation (shares)		(634)
Net income (loss)	(2,835)				(2,835)
Shareholders' equity, end of period at Jun. 30, 2022	62,572		158,727	(36,240)	(59,915)
Shareholders' equity, at end of period (shares) at Jun. 30, 2022		31,250,071
Shareholders' equity, beginning of period at Mar. 31, 2023	33,249		160,907	(36,237)	(91,421)
Shareholders' equity, beginning of period (Shares) at Mar. 31, 2023		32,295,408
Shares issued under Employee Stock Purchase Plan	$ 1			1
Shares issued under Employee Stock Purchase Plan (shares)	700	699
Stock-based compensation	$ 188		188
Stock-based compensation (shares)		206,451
Net income (loss)	(6,637)				(6,637)
Shareholders' equity, end of period at Jun. 30, 2023	$ 26,801		$ 161,095	$ (36,236)	$ (98,058)
Shareholders' equity, at end of period (shares) at Jun. 30, 2023		32,502,558