Note H - Accrued Expenses - Summary of Accrued Expenses (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Bonuses	$ 200,000	$ 200,000
Distribution fees	254,863	225,879
Payroll and related expenses	152,903	151,653
Annual report expenses	62,510	63,447
Audit fee	43,268	54,868
Reserve for outdated material	127,768	101,177
Sales rebates	12,000	23,393
Insurance		9,381
Other	28,015	18,530
Total accrued expenses	$ 881,327	$ 848,328