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Long-Term Debt and Financing Arrangements (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Schedule of Outstanding Debt

Our outstanding debt is as follows (in thousands):

	Period Ended
	December 31,				December 31,
	2014				2013
Secured Equipment Notes due in December 2019 with monthly principal and interest payments of $0.2 million commencing in January 2015; interest is paid monthly at a fixed annual rate of 2.24%	$	13,387			$	-

Secured Equipment Notes due in November 2019 with monthly principal and interest payments of $0.5 million commencing in December 2014; interest is paid monthly at a fixed annual rate of 2.05%		28,429				-

Secured Equipment Notes due in September 2019 with monthly principal and interest payments of $0.4 million commencing in September 2014; interest is paid monthly at a fixed annual rate of 2.15%		22,772				-

Secured Equipment Notes due in February 2019 with monthly principal and interest payments of $0.4 million commencing in January 2014; interest is paid monthly at a fixed annual rate between 1.87% and 1.93%		21,016				-

Secured Equipment Notes due in June 2018 with quarterly principal and interest payments of $0.5 million commencing in August 2013; interest is paid quarterly at a fixed annual rate between 1.9% and 2.0%		6,475				8,246
		92,079				8,246

Less current portion		(19,619	)			(1,771	)
Total long-term debt	$	72,460			$	6,475

Summary of Aggregate Principal Payments

Aggregate principal payments, in thousands, due subsequent to December 31, 2014, are as follows:

2015	$	19,619
2016		20,023
2017		20,209
2018		19,668
2019		12,560
	$	92,079