Note 15 - Leases - Maturity of Operating and Financing Leases Liabilities (Details) $ in Thousands	Dec. 31, 2019 USD ($)
2020, operating leases	$ 2,907	[1]
2020, financing leases	702
2020, operating and financing leases	3,609
2021, operating leases	2,486	[1]
2021, financing leases	625
2021, operating and financing leases	3,111
2022, operating leases	1,957	[1]
2022, financing leases	384
2022, operating and financing leases	2,341
2023, operating leases	1,825	[1]
2023, financing leases	86
2023, operating and financing leases	1,911
2024, operating leases	1,808
2024, financing leases	4
2024, operating and financing leases	1,812
Thereafter, operating leases	5,612	[1]
Thereafter, financing leases
Thereafter, operating and financing leases	5,612
Total lease payments, operating leases	16,595	[1]
Total lease payments, financing leases	1,801
Total lease payments, operating and financing leases	18,396
Less: interest, operating leases	3,136	[1]
Less: interest, financing leases	64
Less: interest, operating and financing leases	3,200
Present value of lease liabilities, financing leases	1,737
Present value of lease liabilities, operating and financing leases	15,196
Accrued liabilities and Operating Lease Liabilities, Long-term [Member]
Present value of lease liabilities, operating leases	$ 13,459	[1]

[1] Operating leases payments exclude $14.3 million of legally binding minimum lease payments for leases signed but not commenced as of December 31, 2019.