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Consolidated Statements of Operations and Comprehensive Income - USD ($)
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Income Statement [Abstract]    
Net product revenue $ 2,086,000 $ 1,552,000
Cost of products sold 933,000 749,000
Gross profit 1,153,000 803,000
Selling, general and administrative expenses 590,000 557,000
Operating income 563,000 246,000
Interest income, net 19,000 4,000
Other income, net 221,000 (83,000)
Income before income taxes 803,000 167,000
Income tax provision (41,000) 1,875,000
Net income 762,000 2,042,000
Other comprehensive income:    
Foreign currency translation adjustment (1,000) (17,000)
Comprehensive income $ 761,000 $ 2,025,000
Net income per share: Basic (in Dollars per share) $ 0.13 $ 0.35
Diluted (in Dollars per share) $ 0.13 $ 0.34
Weighted average shares outstanding: Basic (in Shares) 5,996,180 5,876,180
Diluted (in Shares) 6,034,180 5,957,180
Cash dividends declared per common share (in Dollars per share) $ 0.05 $ 0.045