Note 18 - Leases - Total Lease Cost by Type (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Operating lease cost	$ 3,345	[1]
Short-term lease cost	479
Amortization of leased assets	322
Interest on lease liabilities	37
Net lease cost	4,183
Payments on operating leases	2,722
Principal payments under finance lease obligations	267
Interest payments under finance lease obligations	17
Leased assets obtained in exchange for new operating lease liabilities	1,714
Leased assets obtained in exchange for new finance lease liabilities	$ 520
Operating leases (Year)	9 years 292 days
Finance leases (Year)	2 years 219 days
Operating leases	5.80%
Finance leases	4.87%

[1] Includes short-term and variable lease costs, which are immaterial.