Note 15 - Leases - Operating and Finance Assets and Liability Balances (Details) - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018
Operating leases, ASC 842		$ 11,543
Finance leases, ASC 840			1,344
Total leased assets, net, ASC 842		13,358
Operating leases, non-current ASC 842		11,284
Total lease liability, ASC 842		15,196
Total lease liability, ASC 840			1,259
Operating lease assets [Member]
Operating leases, ASC 842	[1]	11,543
Property and Equipment, Net [Member]
Finance leases, ASC 842	[2]	1,815
Finance leases, ASC 840	[2]		1,344
Accrued Liabilities [Member]
Operating leases, current ASC 842		2,175
Current Maturities of Long-term Debt [Member]
Finance leases, current ASC 842		651
Finance leases, current ASC 840			408
Operating Lease Liabilities, Long-term [Member]
Operating leases, non-current ASC 842		11,284
Long-term Debt [Member]
Finance leases, non-current ASC 842		$ 1,086
Finance leases, non-current ASC 840			$ 851

[1] Operating lease assets are recorded net of accumulated amortization of $1.5 million as of December 31, 2019.

[2] Finance lease assets are recorded net of accumulated amortization of $0.7 million and $0.4 million as of December 31, 2019 and 2018, respectively.