Note 11 - Derivative Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments, Gain (Loss) [Table Text Block]

	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
	(in thousands)						(in thousands)
Realized derivative gain (loss)	$	(816	)	$	(715	)	$	(2,713	)	$	(715	)
Unrealized derivative gain (loss)		359			(3,615	)		2,985			(1,576	)
Total gain (loss) on derivative financial instruments	$	(457	)	$	(4,330	)	$	272		$	(2,291	)