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2. Inventory (Details) (USD $) | Dec. 31, 2013 | Dec. 31, 2012
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Inventory Details |  |
Raw materials | $ 597,119 | $ 2,077,779
Work-in-progress | 1,723,866 | 1,672,957
Finished goods | 1,776,559 | 805,044
Total inventory | $ 4,097,544 | $ 4,555,780

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