Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Net sales	$ 5,845,000	$ 6,373,000	$ 11,743,000	$ 11,519,000
Cost of sales	4,366,000	4,285,000	8,787,000	7,899,000
Gross profit	1,479,000	2,088,000	2,956,000	3,620,000
Operating expenses:
General and administrative	1,244,000	1,160,000	2,513,000	2,434,000
Sales and marketing	1,073,000	1,385,000	2,238,000	2,661,000
Research and development	137,000	175,000	221,000	366,000
Total operating expenses	2,454,000	2,720,000	4,972,000	5,461,000
Loss from operations	(975,000)	(632,000)	(2,016,000)	(1,841,000)
Interest expense, net	(175,000)	(163,000)	(336,000)	(323,000)
Loss before income taxes	(1,150,000)	(795,000)	(2,352,000)	(2,164,000)
Income tax expense	0	2,000	0	2,000
Net loss	$ (1,150,000)	$ (797,000)	$ (2,352,000)	$ (2,166,000)
Net loss per share:
Basic (in dollars per share)	$ (0.16)	$ (0.13)	$ (0.34)	$ (0.34)
Diluted (in dollars per share)	$ (0.16)	$ (0.13)	$ (0.34)	$ (0.34)
Shares used in calculation of net loss per share:
Basic (in shares)	7,004	6,366	6,976	6,328
Diluted (in shares)	7,004	6,366	6,976	6,328