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Long-Term Debt - Summary of long term debt (Details) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Debt Instrument [Line Items]    
Long-term debt $ 3,935 $ 4,072
Less current portion (548) (548)
Long-term debt, Noncurrent 3,387 3,524
TTerm loan payable to a financial institution, principal payments through 2021 with a balloon payment of $786,000 due December 1, 2021    
Debt Instrument [Line Items]    
Long-term debt 2,292 2,358
Term loan payable to a financial institution, principal payments through 2021    
Debt Instrument [Line Items]    
Long-term debt $ 1,643 $ 1,714