Note 6 - Income Taxes - Components of Income Tax Provision (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Federal	$ 0	$ 0
State	0	12,000
Total current	0	12,000
Federal	234,000	0
State	39,000	0
Total deferred	273,000	0
Income tax expense	$ 273,000	$ 12,000