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Additional Financial Statement Information (Details Textual) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Accrued customer advances	$ 6,099	$ 846
Accrued commissions	1,614	300
Kelk
Accrued customer advances	5,200
Accrued commissions	$ 1,300

Carrying value as of the balance sheet date of obligations incurred through that date and payable for sales commissions. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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