Note 5 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Operating Lease Cost	$ 576	$ 409	$ 1,696	$ 1,118
Finance Lease Interest Cost	18	26	61	79
Finance Lease Amortization Expense	163	163	489	478
Total Lease Cost	$ 757	$ 598	2,246	1,675
Cash paid for amounts included in the measurement of lease liabilities			861	686
Property Acquired under Operating Lease			$ 858	$ 4,685
Operating Leases (Year)	9 years 7 months 6 days		9 years 7 months 6 days
Finance Leases (Year)	2 years 7 months 6 days		2 years 7 months 6 days
Operating Leases	7.80%		7.80%
Finance Leases	5.10%		5.10%