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Condensed Consolidated Statements of Operations (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Income Statement [Abstract]    
Net sales $ 2,780 $ 1,899
Cost of goods sold 458 360
Gross profit 2,322 1,539
Operating expenses    
Research and development 1,809 934
Selling, general and administrative 6,710 6,186
Total operating expenses 8,519 7,120
Loss from operations (6,197) (5,581)
Other (income) expense    
Interest and other income (119) (4)
Other expense 5
Total other (income) expense (119) 1
Loss before income taxes (6,078) (5,582)
Benefit from income taxes 211
Net loss $ (5,867)  
Net loss per share of common stock - Basic $ (1.24) $ (1.2)
Net loss per share of common stock - Diluted $ (1.24) $ (1.2)
Weighted average common shares outstanding - Basic 4,743 4,652
Weighted average common shares outstanding - Diluted 4,743 4,652