Note 11 - Leases -Summary of Lease Activity (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)
Lease cost:
Operating lease cost	$ 1,191	$ 2,377
Finance lease cost
Amortization of ROU assets	72	144
Interest on lease liabilities	41	88
Short-term lease cost	349	566
Total lease cost	1,653	3,175
Supplemental cash flow information:
Operating cash flows from operating leases	(995)	(2,062)
Operating cash flows from finance leases	(38)	(51)
Financing cash flows from finance leases	$ (251)	$ (527)
Supplemental balance sheet information:
Weighted-average remaining lease term - operating leases (yrs)	9 years 10 months 24 days	9 years 10 months 24 days
Weighted-average remaining lease term - finance leases (yrs)	2 years 7 months 6 days	2 years 7 months 6 days
Weighted-average discount rate - operating leases	4.20%	4.20%
Weighted-average discount rate - finance leases	4.10%	4.10%