Note I - Income Taxes - Income Taxes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current Income Tax Expense (Benefit), Total		$ (36,000)	$ (1,080,000)
Federal	166,000	(425,000)	4,023,000
Change in valuation allowance	(166,000)	425,000	(4,023,000)
Total deferred
Totals	$ 0	$ (36,000)	$ (1,080,000)