Note 14 - Income Taxes (Details Textual) - USD ($)		12 Months Ended
	Dec. 22, 2017	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability	$ 1,419,000	$ 1,419,000
Deferred Tax Assets, Gross, Total			$ 4,495,000	$ 5,324,000
Deferred Tax Liabilities, Gross, Total			2,489,000	1,789,000
Deferred Tax Assets, Net, Total			2,006,000	3,535,000
Deferred Tax Assets, Valuation Allowance, Total			$ 0	$ 0