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Fair Value Measurements (Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) (USD $)
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Dec. 31, 2013
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Dec. 31, 2012
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Restricted Cash equivalents | $ 196,130 | $ 1,091,801 |
| Marketable Securities | 100,000 | 100,000 |
| Total Assets: | 296,130 | 1,191,801 |
| Warrant Liabilities | 5,034,058 | 2,842,065 |
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Level 1 [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Restricted Cash equivalents | 158,630 | 1,054,301 |
| Marketable Securities | 100,000 | 100,000 |
| Total Assets: | 258,630 | 1,154,301 |
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Level 2 [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Restricted Cash equivalents | 37,500 | 37,500 |
| Total Assets: | 37,500 | 37,500 |
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Level 3 [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Warrant Liabilities | $ 5,034,058 | $ 2,842,065 |