Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Net revenues:
Revenue	$ 4,003,000	$ 2,622,000	$ 8,939,000	$ 6,869,000
Costs and expenses:
Cost of sales	3,512,000	2,144,000	7,982,000	5,654,000
Selling, general and administrative expenses	1,224,000	1,202,000	4,029,000	3,464,000
Total cost of sales and SG&A	4,736,000	3,346,000	12,011,000	9,118,000
Operating loss	(733,000)	(724,000)	(3,072,000)	(2,249,000)
Other income:
Settlement of litigation	0	0	0	3,100,000
Interest income, net	206,000	289,000	705,000	872,000
(Loss) income before income taxes	(527,000)	(435,000)	(2,367,000)	1,723,000
(Benefit) provision for income tax expense	0	(14,000)	3,000	74,000
Net (loss) income	$ (527,000)	$ (421,000)	$ (2,370,000)	$ 1,649,000
Basic (loss) income per share (in dollars per share)	$ (0.03)	$ (0.02)	$ (0.11)	$ 0.08
Diluted (loss) income per share (in dollars per share)	$ (0.03)	$ (0.02)	$ (0.11)	$ 0.08
Weighted average shares outstanding
Basic (in shares)	21,042,652	21,042,652	21,042,652	21,042,652
Diluted (in shares)	21,042,652	21,042,652	21,042,652	21,042,652
Product [Member]
Net revenues:
Revenue	$ 3,892,000	$ 2,599,000	$ 8,691,000	$ 6,745,000
License [Member]
Net revenues:
Revenue	$ 111,000	$ 23,000	$ 248,000	$ 124,000