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Commitments and Contingencies (Details Textual) (USD $) | 0 Months Ended | 1 Months Ended | 9 Months Ended | 141 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Feb. 08, 2008 sqft | Jul. 31, 2008 | Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Jun. 30, 2011 sqft | Aug. 01, 2013 Subsequent Event sqft
Commitments and Contingencies (Textual) [Abstract] |  |  |  |  |  |  |
Area of office facilities taken on lease | 15,000 |  |  |  |  | 4,500 | 5,300
Lease term | 5 years |  |  |  |  |  |
Lease expiry period |  |  | 2013-09 |  |  |  |
Rent expense |  |  | $ 44,000 | $ 36,000 | $ 559,000 |  |
Milestone payment |  | 500,000 |  |  |  |  |
Expected milestone payments upon approval |  | 8,000,000 |  |  |  |  |
Another expected milestone payments upon approval |  | $ 5,000,000 |  |  |  |  |
Minimum percentage of royalty obligation |  | 12.50% |  |  |  |  |
Maximum percentage of royalty obligation |  | 25.00% |  |  |  |  |
Product sales levels royalty |  | 5.00% |  |  |  |  |
Minimum percentage of range of royalties that can be buy down |  | 12.50% |  |  |  |  |
Maximum percentage of range of royalties that can be buy down |  | 17.00% |  |  |  |  |
Milestone payment due period |  | 6 months |  |  |  |  |

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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
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