Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Net sales	$ 6,172,000	$ 5,582,000	$ 17,915,000	$ 17,101,000
Cost of sales	3,993,000	3,933,000	12,781,000	11,831,000
Gross profit	2,179,000	1,649,000	5,134,000	5,270,000
Operating expenses:
General and administrative	1,012,000	947,000	3,524,000	3,381,000
Sales and marketing	1,090,000	1,387,000	3,328,000	4,048,000
Research and development	127,000	163,000	348,000	530,000
Total operating expenses	2,229,000	2,497,000	7,200,000	7,959,000
Loss from operations	(50,000)	(848,000)	(2,066,000)	(2,689,000)
Interest expense, net	(174,000)	(172,000)	(510,000)	(495,000)
Loss before income taxes	(224,000)	(1,020,000)	(2,576,000)	(3,184,000)
Income tax expense	0	0	0	2,000
Net loss	$ (224,000)	$ (1,020,000)	$ (2,576,000)	$ (3,186,000)
Net loss per share:
Basic and diluted (in dollars per share)	$ (0.03)	$ (0.16)	$ (0.37)	$ (0.5)
Shares used in calculation of net loss per share:
Basic and diluted (in shares)	7,156	6,554	7,036	6,404