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Summary of Supplemental Disclosures of Cash Flow Information (Details) (USD $)
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12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| Summary of Supplemental Disclosures of Cash Flow Information | |||
| Stock-based compensation accrual impact, net | $ (31,378) | $ (10,687) | $ 395,257 |
| Change in unrealized loss/gain on available for sale securities | 18,502 | ||
| Cash paid for interest | 474,716 | 255,896 | 12,634 |
| Transfer of investment in leased property to inventory | $ 253,786 | ||