Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement [Line Items]
Balance	$ 116,386	$ 115,222
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(34,119)	2,998
Exercise of stock options		28
Cancellation of restricted stock awards	(175)
Treasury stock repurchases	(2,389)	(2,062)
Share-based compensation	106	200
Balance	79,809	116,386
Common Stock
Statement [Line Items]
Balance	$ 35,292	$ 35,064
Balance (in shares)	7,546,000	7,708,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of restricted stock awards (in shares)	11,000	18,000
Exercise of stock options		$ 28
Exercise of stock options (in shares)		2,000
Cancellation of restricted stock awards	$ (175)
Cancellation of restricted stock awards (in shares)	(27,000)
Treasury stock repurchases (in shares)	(241,000)	(182,000)
Share-based compensation	$ 106	$ 200
Balance	$ 35,223	$ 35,292
Balance (in shares)	7,289,000	7,546,000
Treasury Stock
Statement [Line Items]
Balance	$ (74,405)	$ (72,343)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock repurchases	2,389	2,062
Balance	(76,794)	(74,405)
Retained Earnings
Statement [Line Items]
Balance	155,499	152,501
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(34,119)	2,998
Balance	$ 121,380	$ 155,499