Note 15 - Income Taxes (Details Textual) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Deferred Tax Assets, Gross, Total	$ 6,987,000	$ 5,566,000
Deferred Tax Liabilities, Gross, Total	2,434,000	3,635,000
Deferred Tax Assets, Net, Total	4,553,000	1,931,000
Deferred Tax Assets, Valuation Allowance, Total	$ 0	$ 0