Note G - Accrued Expenses - Summary of Accrued Expenses (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Bonuses	$ 216,000	$ 242,000
Distribution fees	309,190	315,242
Payroll and related expenses	175,433	159,385
Annual report expenses	64,324	66,618
Audit fee	48,500	43,668
Reserve for outdated material	231,392	160,533
Sales rebates	46,100	15,000
Computer services		16,593
Other	38,187	21,596
Total accrued expenses	$ 1,129,126	$ 1,040,635