Inventory (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Inventory Details
Raw materials	$ 34,020us-gaap_InventoryRawMaterials	$ 29,330us-gaap_InventoryRawMaterials
Finished goods	2,795us-gaap_InventoryFinishedGoods	705us-gaap_InventoryFinishedGoods
Total inventory	$ 36,815us-gaap_InventoryNet	$ 30,035us-gaap_InventoryNet

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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 after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 6

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-Name Accounting Standards Codification

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