Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Net revenues:
Revenue	$ 1,891,000	$ 4,003,000	$ 4,781,000	$ 8,939,000
Costs and expenses:
Cost of sales	1,685,000	3,512,000	4,565,000	7,982,000
Selling, general and administrative expenses	1,032,000	1,224,000	3,547,000	4,029,000
Total cost of sales and SG&A	2,717,000	4,736,000	8,112,000	12,011,000
Operating loss	(826,000)	(733,000)	(3,331,000)	(3,072,000)
Other income:
Interest income, net	132,000	206,000	454,000	705,000
(Loss) before income taxes	(694,000)	(527,000)	(2,877,000)	(2,367,000)
Provision for income tax expense	0	0	0	3,000
Net (loss)	$ (694,000)	$ (527,000)	$ (2,877,000)	$ (2,370,000)
Basic (loss) per share (in dollars per share)	$ (0.03)	$ (0.03)	$ (0.14)	$ (0.11)
Diluted (loss) per share (in dollars per share)	$ (0.03)	$ (0.03)	$ (0.14)	$ (0.11)
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	$ 1,804,000	$ 3,892,000	$ 4,520,000	$ 8,691,000
License [Member]
Net revenues:
Revenue	$ 87,000	$ 111,000	$ 261,000	$ 248,000