Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Net sales	$ 5,968	$ 9,865
Cost of sales	6,286	8,167
Gross (loss) profit	(318)	1,698
Operating expenses:
Product development	1,491	1,891
Selling, general, and administrative	7,148	8,535
Loss on impairment	338	0
Restructuring	0	(21)
Total operating expenses	8,977	10,405
Loss from operations	(9,295)	(8,707)
Other expenses:
Interest expense	954	792
Gain on forgiveness of PPP loan	0	(801)
Other income	(30)	(876)
Other expenses	56	65
Loss from operations before income taxes	(10,275)	(7,887)
Provision for (benefit from) income taxes	4	(1)
Net loss	$ (10,279)	$ (7,886)
Net loss per common share - basic and diluted:
Net loss, basic (in USD per share)	$ (1.27)	$ (1.73)
Net loss, diluted (in USD per share)	$ (1.27)	$ (1.73)
Weighted average shares of common shares outstanding:
Basic (in shares)	8,110	4,561
Diluted (in shares)	8,110	4,561