Unaudited Condensed Statements of Stockholders’ Equity - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Deficit
Balance (in shares) at Mar. 31, 2022		42,416,000
Balance, treasury stock (in shares) at Mar. 31, 2022			0
Balance at Mar. 31, 2022	$ 75,250	$ 4,242	$ 0	$ 186,720	$ (115,712)
Increase (Decrease) in Stockholders' Equity
Stock option exercises (in shares)		1,000
Stock option exercises	1			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
Balance, treasury stock (in shares) at Jun. 30, 2022			300,000
Balance at Jun. 30, 2022	70,374	$ 4,242	$ (884)	187,593	(120,577)
Balance (in shares) at Mar. 31, 2022		42,416,000
Balance, treasury stock (in shares) at Mar. 31, 2022			0
Balance at Mar. 31, 2022	75,250	$ 4,242	$ 0	186,720	(115,712)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(12,262)
Balance (in shares) at Sep. 30, 2022		42,640,000
Balance, treasury stock (in shares) at Sep. 30, 2022			300,000
Balance at Sep. 30, 2022	63,866	$ 4,265	$ (884)	188,459	(127,974)
Balance (in shares) at Jun. 30, 2022		42,421,000
Balance, treasury stock (in shares) at Jun. 30, 2022			300,000
Balance at Jun. 30, 2022	70,374	$ 4,242	$ (884)	187,593	(120,577)
Increase (Decrease) in Stockholders' Equity
Stock option exercises (in shares)		27,000
Stock option exercises	44	$ 3		41
Issuance of shares pursuant to vesting of restricted stock units, net of payroll withholding taxes (in shares)		108,000
Issuance of shares pursuant to vesting of restricted stock units, net of payroll withholding taxes	(83)	$ 11		(94)
Stock-based compensation	696			696
Issuance of shares pursuant to Employee Stock Purchase Plan (in shares)		84,000
Issuance of shares pursuant to Employee Stock Purchase Plan	232	$ 9		223
Net income (loss)	(7,397)				(7,397)
Balance (in shares) at Sep. 30, 2022		42,640,000
Balance, treasury stock (in shares) at Sep. 30, 2022			300,000
Balance at Sep. 30, 2022	$ 63,866	$ 4,265	$ (884)	188,459	(127,974)
Balance (in shares) at Mar. 31, 2023	42,808,000	42,808,000
Balance, treasury stock (in shares) at Mar. 31, 2023			369,000
Balance at Mar. 31, 2023	$ 62,906	$ 4,282	$ (891)	190,082	(130,567)
Increase (Decrease) in Stockholders' Equity
Stock option exercises (in shares)		60,000
Stock option exercises	257	$ 6		251
Issuance of shares pursuant to vesting of restricted stock units, net of payroll withholding taxes (in shares)		1,000
Issuance of shares pursuant to vesting of restricted stock units, net of payroll withholding taxes	(6)			(6)
Stock-based compensation	525			525
Net income (loss)	2,125				2,125
Balance (in shares) at Jun. 30, 2023		42,869,000
Balance, treasury stock (in shares) at Jun. 30, 2023			369,000
Balance at Jun. 30, 2023	$ 65,807	$ 4,288	$ (891)	190,852	(128,442)
Balance (in shares) at Mar. 31, 2023	42,808,000	42,808,000
Balance, treasury stock (in shares) at Mar. 31, 2023			369,000
Balance at Mar. 31, 2023	$ 62,906	$ 4,282	$ (891)	190,082	(130,567)
Increase (Decrease) in Stockholders' Equity
Net income (loss)	$ 2,676
Balance (in shares) at Sep. 30, 2023	42,823,000	42,823,000
Balance, treasury stock (in shares) at Sep. 30, 2023			91,000
Balance at Sep. 30, 2023	$ 67,566	$ 4,283	$ (9)	192,037	(128,745)
Balance (in shares) at Jun. 30, 2023		42,869,000
Balance, treasury stock (in shares) at Jun. 30, 2023			369,000
Balance at Jun. 30, 2023	65,807	$ 4,288	$ (891)	190,852	(128,442)
Increase (Decrease) in Stockholders' Equity
Stock option exercises (in shares)		44,000
Stock option exercises	87	$ 4		83
Issuance of shares pursuant to vesting of restricted stock units, net of payroll withholding taxes (in shares)		78,000
Issuance of shares pursuant to vesting of restricted stock units, net of payroll withholding taxes	(4)	$ 8		(12)
Issuance of shares pursuant to vesting of performance stock units, net of payroll withholding taxes (in shares)		40,000
Issuance of shares pursuant to vesting of performance stock units, net of payroll withholding taxes	(14)	$ 4		(18)
Treasury stock retirement	0	$ (30)	$ 884		(854)
Treasury stock retirement (in shares)		(300,000)	(300,000)
Deferred shares held within rabbi trust (in shares)			22,000
Deferred shares held within rabbi trust	0		$ (2)	2
Stock-based compensation	871			871
Issuance of shares pursuant to Employee Stock Purchase Plan (in shares)		92,000
Issuance of shares pursuant to Employee Stock Purchase Plan	268	$ 9		259
Net income (loss)	$ 551				551
Balance (in shares) at Sep. 30, 2023	42,823,000	42,823,000
Balance, treasury stock (in shares) at Sep. 30, 2023			91,000
Balance at Sep. 30, 2023	$ 67,566	$ 4,283	$ (9)	$ 192,037	$ (128,745)