Note 14 - Income Taxes (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Expense (Benefit), Total	$ 157,000	$ 383,000	$ 230,000	$ (1,230,000)
Effective Income Tax Rate Reconciliation, Percent, Total	270.70%		(1.60%)