Condensed Consolidated Statements of Operations (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Revenue, net, including related parties (Note 13)	$ 3,670	$ 11,303	$ 8,826	$ 14,519
Cost of goods sold	3,232	2,239	7,282	4,806
Gross profit	438	9,064	1,544	9,713
Operating expenses:
Research and development	1,830	1,591	3,570	3,414
Sales and marketing	1,066	825	2,149	1,512
General and administrative	3,044	2,714	6,361	5,457
Total operating expenses	5,940	5,130	12,080	10,383
(Loss) income from operations	(5,502)	3,934	(10,536)	(670)
Interest expense	184	220	366	424
Loss in joint venture	684	1,092	1,266	2,582
Changes in fair value of promissory note	0	(1,629)	0	(605)
Other income, net	(375)	(1,729)	(820)	(1,999)
(Loss) income before tax expense	(5,995)	5,980	(11,348)	(1,072)
Tax expense	0	0	0	0
Net (loss) income	$ (5,995)	$ 5,980	$ (11,348)	$ (1,072)
Net (loss) income per share - basic (in usd per share)	$ (0.10)	$ 0.15	$ (0.20)	$ (0.03)
Net (loss) income per share - diluted (in usd per share)	$ (0.10)	$ 0.14	$ (0.20)	$ (0.03)
Weighted average common shares outstanding - basic (in shares)	56,619,662	41,196,139	55,518,297	40,918,203
Weighted average common shares outstanding - diluted (in shares)	56,619,662	41,847,103	55,518,297	40,918,203