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Inventory (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Inventory
Raw materials	$ 1,649,720	$ 1,541,688
Work in process	181,583	126,188
Finished goods	397,768	457,962
Total	2,229,071us-gaap_InventoryNet	2,125,838us-gaap_InventoryNet
Allowance for excess and obsolete inventory	$ 70,511us-gaap_InventoryAdjustments	$ 62,069us-gaap_InventoryAdjustments

Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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