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Long-Term Debt / Note Payable (Details 4) (USD $) | 12 Months Ended | 0 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2011 MidCap Loan | Dec. 31, 2011 MidCap Loan
Credit facility disclosures |  |  |  |
Total debt |  |  | $ 5,000,000 |
Term |  |  | 42 months |
Period of time for interest only payments |  |  | 12 months |
Period of time for payments of principal and interest |  |  | 30 months |
Interest payable |  |  | 9.90% |
Period in a fiscal year for calculation of interest rate |  |  | 360 days |
Term of warrants |  |  | 10 years |
Minimum percentage of loan principal amount required to maintain cash balance |  |  | 80.00% |
Lenders warrant purchase |  |  | 89,686 |
Exercise price |  |  | $ 2.23 |
Fair value of warrant recorded as debt discount |  |  | 173,376 |
Amortization of deferred financing costs related to warrants |  | 161,529 |  | 12,207
Deferred financing costs of loan and security agreement |  |  | 317,990 |
Amortization of deferred financing costs | $ 178,864 | $ 352,667 |  | $ 22,714

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