Note 2 - Income Taxes - Income Tax Expense (Benefit) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Current:
Federal	$ (216,000)
State	6,000	11,000
Current Income Tax Expense (Benefit), Total	(210,000)	11,000
Deferred - Federal		(183,000)
Income Tax Expense (Benefit), Total	$ (210,000)	$ (172,000)