Note 14 - Accumulated Other Comprehensive (Loss) Income (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure Text Block [Abstract]

Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]

Details about AOCI Components	Amount Reclassified from AOCI for the years ended December 31,									Affected Line Item in the Statement of Operations
	2014			2013			2012
(Losses) gains on cash flow hedges
Commodity derivative contracts	$	(3,141	)	$	643		$	5,031		Fuel expense
		1,206			(247	)		(1,932	)	Income tax expense
	$	(1,935	)	$	396		$	3,099		Net of tax