CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Income Statement [Abstract]
Net sales	$ 3,560	$ 4,860
Cost of sales	2,888	4,161
Gross profit	672	699
Operating expenses:
Product development	412	524
Selling, general, and administrative	1,284	2,017
Total operating expenses	1,696	2,541
Loss from operations	(1,024)	(1,842)
Other expenses (income):
Interest income	(2)	0
Interest expense	0	5
Gain on debt extinguishment	0	(187)
Gain on partial lease termination	(2)	(63)
Gain on disposal of fixed assets	(3)	0
Other income	0	(27)
Other expenses	10	12
Loss from operations before income taxes	(1,027)	(1,582)
Provision for income taxes	0	0
Net loss	$ (1,027)	$ (1,582)
Net loss per common stock - basic and diluted
Net loss, basic (in dollars per share)	$ (0.18)	$ (0.32)
Net loss, diluted (in dollars per share)	$ (0.18)	$ (0.32)
Weighted average shares of common stock outstanding:
Basic (in shares)	5,553	4,947
Diluted (in shares)	5,553	4,947