Stock-Based Compensation - Stock Options (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Stock Option Activity and Outstanding Options
Options outstanding (in shares)	471
Granted (in shares)	1,400
Forfeited, canceled or expired (in shares)	(66)
Options outstanding (in shares)	1,805	471
Stock Option Activity and Weighted-Average Exercise Price
Beginning of period, Weighted Average Exercise Price (in dollars per share)	$ 1.82
Granted, Weighted Average Exercise Price (in dollars per share)	1.61
Forfeited, canceled or expired, Weighted Average Exercise Price (in dollars per share)	2.43
End of period, Weighted Average Exercise Price (in dollars per share)	$ 1.63	$ 1.82
Options outstanding, Number (in shares)	1,805	471
Options outstanding, Weighted Average Exercise Price (in dollars per share)	$ 1.63	$ 1.82
Options outstanding, Weighted-Average Remaining Contractual Life	8 years 2 months 12 days
Options exercisable, Number of Options Exercisable	470
Options exercisable, Weighted-Average Exercise Price (in dollars per share)	$ 1.78
Options exercisable, aggregate intrinsic value	$ 0
Options exercisable, Weighted average remaining contractual term	4 years 4 months 24 days
Vested and expected to vest (in shares)	1,805
Vested and expected to vest, Weighted Average Exercise Price (in dollars per share)	$ 1.63
Vested and expected to vest, Aggregate Intrinsic Value	$ 0
Vested and expected to vest, remaining contractual term (in years)	8 years 2 months 12 days
General and administrative	$ 3,885	$ 6,262
Weighted average period for unvested stock options	1 year 3 months 18 days
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding	$ 0
Stock options
Stock Option Activity and Weighted-Average Exercise Price
General and administrative	190	$ 177
Compensation expense for unvested stock options	$ 5,600