Stock-Based Compensation - Schedule of option activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended					9 Months Ended		12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2021	Dec. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Beginning balance, Options outstanding (in shares)	2,506,531		2,327,423		2,458,091	2,543,125	2,458,091	2,458,091
Options granted (in shares)	473,077		0			528,077	0
Options exercised (in shares)	0		0			(31,925)	(3,475)
Options cancelled (in shares)	(21,704)		(7,105)			(81,373)	(134,298)
Ending balance, Options outstanding (in shares)	2,957,904	2,506,531	2,320,318	2,327,423		2,957,904	2,320,318	2,543,125
Exercisable at period end (in shares)	2,227,540		2,267,154			2,227,540	2,267,154
Weighted Average Exercise Price per Share
Beginning of period (in dollars per share)	$ 4.77		$ 4.68		$ 4.74	$ 4.82	$ 4.74	$ 4.74
Options granted (in dollars per share)	6.52		0			6.31	0
Options exercised (in dollars per share)	0		0			4.21	3.80
Options cancelled (in dollars per share)	9.32		8.96			7.46	6.01
End of period (in dollars per share)	5.02	$ 4.77	4.67	$ 4.68		5.02	4.67	$ 4.82
Exercisable at end of period (in usd per share)	$ 4.61		$ 4.70			$ 4.61	$ 4.70
Weighted Average Remaining Contractual Term (in years)
Options outstanding, weighted average remaining contractual term (in years)	6 years 1 month 20 days	5 years 8 months 1 day	5 years 11 months 1 day	6 years 1 month 28 days	6 years 6 months 29 days	6 years 1 month 20 days	5 years 11 months 1 day	6 years 18 days
Options exercisable, weighted average remaining contractual term (in years)	5 years		5 years 10 months 9 days			5 years	5 years 10 months 9 days
Aggregate Intrinsic Value (in thousands)
Options outstanding, aggregate intrinsic value	$ 9,218	$ 590	$ 0	$ 167		$ 9,218	$ 0	$ 0	$ 0
Options exercisable, aggregate intrinsic value	$ 7,958		$ 0			$ 7,958	$ 0
Closing stock price (in dollars per share)	$ 8.00		$ 3.00			$ 8.00	$ 3.00