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Fair Value Liabilities Measured on Recurring Basis Unobservable Inputs Reconciliation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Fair Value Measurements [Abstract]    
Beginning Balance $ 472 $ 0
Additions (Note 2) 0 472
Charge to earnings (17) 0
Ending Balance $ 455 $ 472