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Notes Payable (Details) (USD $)
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3 Months Ended | |
|---|---|---|
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Mar. 31, 2013
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Mar. 31, 2012
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| Debt Instrument [Line Items] | ||
| Principal payments on notes payable | $ 735,410 | |
| Interest expense recorded | 363,082 | 293,671 |
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Hercules Technology II, L.P. Notes [Member]
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| Debt Instrument [Line Items] | ||
| Principal payments on notes payable | 656,000 | |
| Interest expense recorded | 255,000 | 293,000 |
| Debt instrument, principal amount | 5,100,000 | |
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Platinum Montaur Life Sciences, LLC Credit Facility [Member]
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| Debt Instrument [Line Items] | ||
| Interest expense recorded | 106,000 | |
| Draws under credit facility | 4,000,000 | |
| Total principal amount due under facility | 8,000,000 | |
| Increase in maximum borrowing capacity | $ 20,000,000 | |
| X | ||||||||||
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- Definition
Line Of Credit Facility, Increase In Maximum Borrowing Capacity. No definition available.
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| X | ||||||||||
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- Definition
The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The cost of borrowed funds accounted for as interest that was charged against earnings during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount borrowed under the credit facility as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow for a borrowing supported by a written promise to pay an obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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