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
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, 2022	65,100		158,419	(36,239)	(57,080)
Shareholders' equity, beginning of period (Shares) at Mar. 31, 2022		31,097,872
Net income (loss)	(5,166)
Shareholders' equity, end of period at Sep. 30, 2022	60,975		159,460	(36,239)	(62,246)
Shareholders' equity, at end of period (shares) at Sep. 30, 2022		31,355,911
Shareholders' equity, beginning of period at Jun. 30, 2022	62,572		158,727	(36,240)	(59,915)
Shareholders' equity, beginning of period (Shares) at Jun. 30, 2022		31,250,071
Shares issued under Employee Stock Purchase Plan	$ 1			1
Shares issued under Employee Stock Purchase Plan (shares)	648	648
Stock-based compensation	$ 733		733
Stock-based compensation (shares)		105,192
Net income (loss)	(2,331)				(2,331)
Shareholders' equity, end of period at Sep. 30, 2022	60,975		159,460	(36,239)	(62,246)
Shareholders' equity, at end of period (shares) at Sep. 30, 2022		31,355,911
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)		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
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
Net income (loss)	(11,025)
Shareholders' equity, end of period at Sep. 30, 2023	22,640		161,321	(36,235)	(102,446)
Shareholders' equity, at end of period (shares) at Sep. 30, 2023		32,503,320
Shareholders' equity, beginning of period at Jun. 30, 2023	26,801		161,095	(36,236)	(98,058)
Shareholders' equity, beginning of period (Shares) at Jun. 30, 2023		32,502,558
Shares issued under Employee Stock Purchase Plan	$ 1			1
Shares issued under Employee Stock Purchase Plan (shares)	762	762
Stock-based compensation	$ 226		226
Net income (loss)	(4,388)				(4,388)
Shareholders' equity, end of period at Sep. 30, 2023	$ 22,640		$ 161,321	$ (36,235)	$ (102,446)
Shareholders' equity, at end of period (shares) at Sep. 30, 2023		32,503,320