Note 13 - Leases (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating Lease, Weighted Average Remaining Lease Term (Year)	3 years 8 months 4 days
Operating Lease, Weighted Average Discount Rate, Percent	5.14%
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 100
Finance Lease, Liability, Payment, Due, Total	100
Operating Lease, Lease Income, Total	13,365	$ 13,365
Real Property Located in Lafayette, Louisiana [Member]
Below Market Lease, Net, Ending Balance	100	100
Below Market Lease, Amortization Income, Year One	100
Below Market Lease, Amortization Income, Year Two	100
Below Market Lease, Amortization Income, Year Three	100
Below Market Lease, Amortization Income, Year Four	100
Below Market Lease, Amortization Income, Year Five	100
LA Property [Member]
Below Market Lease, Amortization Income, Year One	100
Below Market Lease, Amortization Income, Year Two	100
Below Market Lease, Amortization Income, Year Three	100
Below Market Lease, Amortization Income, Year Four	100
General and Administrative Expense [Member]
Operating Lease, Cost	1,000
Variable Lease, Cost	100
Operating Lease, Payments	$ 1,000	$ 700