Summary of Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Raw materials	$ 6,444	$ 8,198
Work in process	3,213	2,831
Finished goods	2,085	2,414
Inventory, Net, Total	$ 11,742	$ 13,443

Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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