Note 11 - Accumulated Other Comprehensive Loss ("AOCI") (Tables)

3 Months Ended

Mar. 31, 2015

Disclosure Text Block [Abstract]

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

Details about AOCI Components	Amount Reclassified from AOCI for the three months ended March 31, 2015			Affected Line Item in the Statement of Operations
Gains on cash flow hedges
Commodity derivative contracts	$	3,404		Fuel expense
		(1,304	)	Income tax (benefit)
	$	2,100		Net of tax