Note 5 - Summary of Accounts Payable, Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Accounts payable, trade	$ 7,199	$ 7,790
Accrued compensation and other	10,335	21,948
Accrued operating expenses	16,868	21,923
Total accounts payable, accrued expenses and other liabilities	$ 34,402	$ 51,661