Note 9 - Leases - Components of Operating Lease Expense (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Operating lease cost	$ 1,980	[1]
Less: Sublease income (Note 20)	(37)
Net lease cost	$ 1,943

[1] Includes variable lease costs, which are immaterial.