Fair Value - Debt and Capital Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, including current portion, Recorded Amount	$ 14,234	$ 15,832
Capital leases, including current portion, Recorded Amount	16,234	16,529
Total, Recorded Amount	30,468	32,361
Total, Fair Value	22,694	24,064
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, including current portion, Fair Value	13,338	14,024
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Capital lease obligations, including current portion, Fair Value	$ 9,356	$ 10,040