Note 10 - Leases - Leases Information (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020
Amortization of finance lease assets		$ 984	$ 619
Interest on finance lease liabilities		395	210
Total finance lease costs		1,379	829
Operating lease cost		2,965	2,939
Short-term lease cost		654	648
Variable lease cost	[1]	870	992
Sublease income		(187)	(183)
Total operating lease costs		4,302	4,396
Total lease cost		5,681	5,225
Operating cash outflow from operating leases		3,581	3,551
operating lease liabilities		$ 907	$ 4,777
Weighted-average remaining lease term-finance leases at end of period (in years) (Year)		1 year 10 months 24 days	1 year 8 months 12 days
Weighted-average remaining lease term-operating leases at end of period (in years) (Year)		8 years 10 months 24 days	9 years 9 months 18 days
Weighted-average discount rate-finance leases at end of period		6.30%	8.30%
Weighted-average discount rate-operating leases at end of period		8.60%	8.70%

[1] Variable lease costs consist primarily of taxes, insurance, utilities, and common area or other maintenance costs for the Company’s leased facilities and equipment.