Note 6 - Financial Instruments and Fair Value (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]

Description	Fair Value Measurements Using Significant Unobservable Inputs March 31, 2018		Loss During the Quarter Ended March 31, 2018			Loss During the Quarter Ended March 31, 2017
Long-lived assets held for sale	$	7,645	$	(56	)	$	−