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Inventories (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Inventories
Raw materials	$ 6,627	$ 6,260
Work in process	1,056	675
Finished goods	3,365	2,760
Total inventory	$ 11,048	$ 9,695

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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 merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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