Note 5 - Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Operating Lease Assets	$ 9,052	$ 8,998	[1]
Finance Lease Assets	1,841	2,330
Total Leased Assets	10,893	11,328
Current Operating Lease Liabilities	1,023	688	[1]
Current Finance Lease Liabilities	613	660
Long-Term Operating Lease Liabilities	8,744	8,889
Long Term Finance Lease Liabilities	707	1,152
Total, present value of lease liabilities	$ 11,087	$ 11,389

[1] The balance sheet at December 31, 2020 has been derived from the audited financial statements at that date