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Condensed Consolidated Statements of Comprehensive Loss (Unaudited) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Net loss $ (1,374) $ (1,959)
Other comprehensive (loss) income:    
Unrealized (loss) gain on effective portion of fuel hedges, net of tax of $521 and $251 in 2014 and 2013, respectively (846) 403
Reclassification of fuel hedge gains into statement of operations, net of tax of $105 and $108 in 2014 and 2013, respectively (168) (280)
Total other comprehensive (loss) income (1,014) 123
Comprehensive loss $ (2,388) $ (1,836)