Note 7 - Accounts Payable, Accrued Expenses and Other Liabilities (Tables)

6 Months Ended

Jun. 30, 2018

Notes Tables

Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]

	June 30,  2018		December 31,  2017
Accounts payable, trade	$	10,741	$	19,330
Accrued compensation and other		26,448		24,072
Accrued operating expenses		19,498		18,498
Total accounts payable, accrued expenses and other liabilities	$	56,687	$	61,900