Note 12 - Leases (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Operating Lease, Weighted Average Remaining Lease Term (Year)	4 years 1 month 20 days		4 years 1 month 20 days
Operating Lease, Weighted Average Discount Rate, Percent	5.27%		5.27%
Operating Lease, Payments			$ 500	$ 400
Below Market Lease, Amortization Income, Remainder of Fiscal Year	$ 100		100
Below Market Lease, Amortization Income, Year One	100		100
Below Market Lease, Amortization Income, Year Two	100		100
Below Market Lease, Amortization Income, Year Three	100		100
Below Market Lease, Amortization Income, Year Four	100		100
Operating Leases, Income Statement, Lease Revenue, Total	3,341	$ 3,341	6,682	$ 6,682
General and Administrative Expense [Member]
Operating Lease, Cost	200		500
Variable Lease, Cost	$ 100		$ 100