Consolidated Statements of Operations and Comprehensive Income - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Net product revenue	$ 6,108,000	$ 8,423,000
Cost of products sold	2,660,000	4,030,000
Gross profit	3,448,000	4,393,000
Selling, general and administrative expenses	2,248,000	2,158,000
Operating income	1,200,000	2,235,000
Interest income, net	221,000	40,000
Other income(expense), net	836,000	(449,000)
Income before income taxes	2,257,000	1,826,000
Income tax (provision) benefit	(412,000)	1,382,000
Net income	1,845,000	3,208,000
Other comprehensive income:
Foreign currency translation adjustment	(3,000)	15,000
Comprehensive income	$ 1,842,000	$ 3,223,000
Weighted average shares outstanding: Basic (in Shares)	6,005,277	5,996,180
Weighted average shares outstanding: Diluted (in Shares)	6,030,277	6,035,180
Cash dividends declared per common share (in Dollars per share)	$ 0.2	$ 0.285
Common Class A [Member]
Other comprehensive income:
Net income per share: Basic (in Dollars per share)	0.31	0.54
Net income per share: Diluted (in Dollars per share)	$ 0.31	$ 0.53
Weighted average shares outstanding: Basic (in Shares)	5,242,665	5,233,568
Weighted average shares outstanding: Diluted (in Shares)	5,267,665	5,272,568
Common Class B [Member]
Other comprehensive income:
Net income per share: Basic (in Dollars per share)	$ 0.31	$ 0.54
Net income per share: Diluted (in Dollars per share)	$ 0.31	$ 0.54
Weighted average shares outstanding: Basic (in Shares)	762,612	762,612
Weighted average shares outstanding: Diluted (in Shares)	762,612	762,612