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Accounts Receivable - Schedule of Accounts Receivable (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Receivables [Abstract]    
Accounts receivable $ 15,915 $ 12,055
Allowance for doubtful accounts (1,221) (2,074)
Total $ 14,694 $ 9,981