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Net Loss Per Common Share (Details Textual) (Stock Option And Warrants [Member])
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12 Months Ended | |
|---|---|---|
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Dec. 31, 2014
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Dec. 31, 2013
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Stock Option And Warrants [Member]
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| Net Loss Per Common Share (Textual) | ||
| Shares issuable excluded from computation of diluted net loss per share | 16,500,753 | 17,327,290 |