Unaudited Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Deficit
Balance (in shares) at Mar. 31, 2021		41,687,000
Balance at Mar. 31, 2021	$ 78,979	$ 4,170		$ 181,828	$ (107,019)
Increase (Decrease) in Stockholders' Equity
Stock option exercises (in shares)		473,000
Stock option exercises	1,375	$ 47		1,328
Stock-based compensation	794			794
Net income (loss)	611				611
Balance (in shares) at Jun. 30, 2021		42,160,000
Balance at Jun. 30, 2021	$ 81,759	$ 4,217		183,950	(106,408)
Balance (in shares) at Mar. 31, 2022	42,416,000	42,416,000
Balance, treasury stock (in shares) at Mar. 31, 2022			0
Balance at Mar. 31, 2022	$ 76,863	$ 4,242	$ 0	186,720	(114,099)
Increase (Decrease) in Stockholders' Equity
Stock option exercises (in shares)		1,000
Stock option exercises	$ 1	$ 0		1
Issuance of shares pursuant to vesting of restricted stock units, net of payroll withholding taxes (in shares)	4,000
Issuance of shares pursuant to vesting of restricted stock units, net of payroll withholding taxes	$ 24			24
Stock-based compensation	848			848
Treasury stock purchases (in shares)			300,000
Treasury stock purchases	(884)		$ (884)
Net income (loss)	$ (4,865)				(4,865)
Balance (in shares) at Jun. 30, 2022	42,421,000	42,421,000
Balance, treasury stock (in shares) at Jun. 30, 2022			300,000
Balance at Jun. 30, 2022	$ 71,987	$ 4,242	$ (884)	$ 187,593	$ (118,964)