Note P - Commitments - Lease Expense (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Cash paid for operating lease liabilities	$ 109,654	$ 158,218
Cash paid for finance lease liabilities	10,307
Right-of-use assets obtained in exchange for new operating lease liabilities (1)	(663,009)
Property and equipment obtained in exchange for new finance lease liabilities	$ (43,242)
Weighted-average remaining lease term- finance leases (Year)	4 years 14 days	73 days
Weighted-average remaining lease term - operating leases (Year)	6 years 91 days
Weighted-average discount rate - operating leases	9.20%	9.20%