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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