Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Net revenues:
Net revenues	$ 9,070	$ 7,177
Costs and expenses:
Cost of sales	7,506	5,076
Selling, general and administrative expenses	4,963	4,197
Total cost of sales and SG&A	12,469	9,273
Operating loss	(3,399)	(2,096)
Other income:
Settlement of litigation	3,100	0
Interest income, net	1,155	702
Income from governmental assistance program	0	34
Income (loss) before income taxes	856	(1,360)
Provision for income tax expense	90	0
Net income (loss)	$ 766	$ (1,360)
Basic income (loss) per share (in dollars per share)	$ 0.04	$ (0.06)
Diluted income (loss) per share (in dollars per share)	$ 0.04	$ (0.06)
Weighted average shares outstanding
Basic (in shares)	21,042,652	21,042,652
Diluted (in shares)	21,042,652	21,042,652
Product [Member]
Net revenues:
Net revenues	$ 8,677	$ 6,075
License [Member]
Net revenues:
Net revenues	218	372
Royalty [Member]
Net revenues:
Net revenues	$ 175	$ 730