Stockholders' Equity - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Sep. 30, 2021
Number of Shares
Outstanding at beginning of period (in shares)	816,717
Granted (in shares)	0	0
Exercised (in shares)	(25,625)
Canceled (in shares)	0
Outstanding at end of period (in shares)	791,092		816,717
Weighted-Average Exercise Price (in dollars per share)
Outstanding at beginning of period (in dollars per share)	$ 7.42
Granted (in dollars per share)	0
Exercised (in dollars per share)	7.98
Canceled (in dollars per share)	0
Outstanding at end of period (in dollars per share)	$ 7.41		$ 7.42
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Vested and Expected to Vest (in shares)	791,092
Exercisable (in shares)	662,498
Vested and Expected to Vest, Weighted Average Exercise Price (in dollars per share)	$ 7.41
Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 6.98
Outstanding, Weighted-Average Remaining Contractual Terms (in Years)	5 years 4 months 24 days		5 years 9 months 18 days
Vested and Expected to Vest, Weighted Average Remaining Contractual Term (in Years)	5 years 4 months 24 days
Exercisable, Weighted Average Remaining Contractual Term (in Years)	5 years 1 month 6 days
Outstanding, Aggregate Intrinsic Value	$ 5,747		$ 9,046
Vested and Expected to Vest, Aggregate Intrinsic Value	5,747
Exercisable, Aggregate Intrinsic Value	$ 5,094