Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Net revenue:
Total net revenues	$ 3,522	$ 3,697
Cost of goods sold	1,335	1,586
Gross margin	2,187	2,111
Operating expenses:
Selling, general and administrative	2,142	2,124
Research and development	212	239
Depreciation and amortization	33	54
Total operating expenses	2,387	2,417
Operating loss	(200)	(306)
Other (expense) income:
Interest expense	(1)	(1)
Interest income	25	12
Other (expense) income, net	7	(11)
Total other income:	31
Net loss	$ (169)	$ (306)
Net loss per common share, basic	$ (0.02)	$ (0.03)
Net loss per common share, diluted	$ (0.02)	$ (0.03)
Weighted average common shares outstanding, basic	10,501,771	10,297,429
Weighted average common shares outstanding, diluted	10,501,771	10,297,429
Comprehensive loss	$ (169)	$ (306)
Product [Member]
Net revenue:
Total net revenues	3,506	3,662
Royalty and Other Revenues [Member]
Net revenue:
Total net revenues	$ 16	$ 35