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Consolidated Statements of Operations - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Income Statement [Abstract]    
Product sales $ 7,789 $ 8,180
Revenue, Product and Service [Extensible Enumeration] Product [Member] Product [Member]
Operating expenses:    
Cost of sales $ 3,181 $ 3,269
General and administrative 3,514 3,357
Selling and marketing 1,246 1,245
Research and development 511 492
Total operating expenses 8,452 8,363
Loss from operations (663) (183)
Other income (expense):    
Employee retention credit 663  
Interest expense (139) (135)
Other income (expense) 8 (13)
Total other income (expense), net 532 (148)
Net loss $ (131) $ (331)
Net loss per common share, basic $ (0.02) $ (0.04)
Net loss per common share, diluted $ (0.02) $ (0.04)
Weighted-average common shares used to compute net loss per share, basic 8,004,389 8,004,389
Weighted-average common shares used to compute net loss per share, diluted 8,004,389 8,004,389