Note 13 - Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments [Table Text Block]

	2014			2013			2012
	(in thousands)
Beginning fair value of derivatives	$	30		$	2,984		$	2,046
(Gain) loss on derivatives		(2	)		(242	)		2,610
Cash settlements paid		(28	)		(2,712	)		(1,672	)
Ending fair value of derivatives	$	-		$	30		$	2,984