Net (Loss) Income Per Share - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net (loss) income (numerator):
Net (loss) income	$ (70)	$ 2,579	$ (957)	$ 5,354
Shares (denominator):
Weighted average number of common shares outstanding used in basic computation (in shares)	20,382,979	20,261,114	20,357,752	20,234,904
Common shares issuable upon vesting of restricted stock (in shares)	0	72,741	0	72,493
Common shares issuable upon conversion of preferred shares (in shares)	0	10,125	0	10,125
Shares used in diluted computation (in shares)	20,382,979	20,343,980	20,357,752	20,317,522
Net (loss) income per common share:
Basic (in dollars per share)	$ (0.00)	$ 0.13	$ (0.05)	$ 0.26
Diluted (in dollars per share)	$ (0.00)	$ 0.13	$ (0.05)	$ 0.26