Note 13 - Commitments and Contingencies Commitment for Non Cancelable Operating Leases in Future Years (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense	$ 5,000	$ 5,000	$ 3,900
Operating Leases, Future Minimum Payments Due, Next Twelve Months	7,020
Operating Leases, Future Minimum Payments, Due in Two Years	3,924
Operating Leases, Future Minimum Payments, Due in Three Years	7,148
Operating Leases, Future Minimum Payments, Due in Four Years	7,151
Operating Leases, Future Minimum Payments, Due in Five Years	6,927
Operating Leases, Future Minimum Payments, Due Thereafter	56,429
Operating Leases, Future Minimum Payments Due	88,599
Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals	$ 0