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Trade Receivables, Net (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Trade receivables | $ 61,707 | $ 71,247
Allowance for doubtful accounts | (400) | (400)
Allowance for discounts | (1,225) | (1,405)
Trade receivables, net | $ 60,082 | $ 69,442
Accounts Receivable [Member] | Customer One [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Percentage of customers | 22.00% | 19.00%
Accounts Receivable [Member] | Customer Two [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Percentage of customers | 20.00% | 15.00%
Accounts Receivable [Member] | Customer Three [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Percentage of customers | 12.00% | 14.00%
Accounts Receivable [Member] | Customer Four [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Percentage of customers |  | 11.00%

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