Note 4 - Income Taxes - Reconciliation of Income Taxes Computed at Statutory Federal Income Tax Rate (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Federal tax (benefit) expense at statutory rates	$ 3,317,500	$ (40,000)
Nondeductible lobbying expense	11,300	13,000
State expense, net of federal impact	747,700	3,000
Federal rate difference on NOL carrybacks	0	(1,213,000)
Other	(91,900)	155
Income Tax Expense (Benefit), Total	3,999,400	(1,250,845)
Share-based Payment Arrangement, Option [Member]
Share-based payment arrangement expense	15,400	0
Long Term Incentive and Restricted Stock Unit [Member]
Share-based payment arrangement expense	$ (600)	$ (14,000)