Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Revenue, net	$ 3,670	$ 11,303	$ 8,826	$ 14,519
Commercial product and service
Disaggregation of Revenue [Line Items]
Revenue, net	3,163	2,300	7,596	4,504
Service
Disaggregation of Revenue [Line Items]
Revenue, net	400	500	1,100	1,400
Government
Disaggregation of Revenue [Line Items]
Revenue, net	507	1,003	1,230	2,015
Licensing
Disaggregation of Revenue [Line Items]
Revenue, net	$ 0	$ 8,000	$ 0	$ 8,000