Note 15 - Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Line Items]
Effective income tax rate and federal statutory income tax rate, difference	6.70%	3.80%
Pre-tax federal and state income tax NOL carryforwards	$ 6,646,000	$ 3,255,000
Uncertain tax positions	$ 0	0
Open tax year	2019 2020 2021 2022
Federal and State [Member]
Income Tax Disclosure [Line Items]
Pre-tax federal and state income tax NOL carryforwards	$ 24,600,000	$ 12,100,000