Annual report pursuant to Section 13 and 15(d)

Note Payable - Additional Information (Detail)

Note Payable - Additional Information (Detail) (USD $)
12 Months Ended 12 Months Ended
Sep. 30, 2014
Apr. 19, 2013
Sep. 30, 2014
Sep. 30, 2013
Massachusetts Life Sciences Center
Note Payable [Line Items]        
Subordinated Debt       $ 1,000,000
Debt Instrument, Payment Terms       The loan bears interest at a rate of 10% per annum, and will become fully due and payable on the earlier of (i) September 30, 2018, (ii) the occurrence of an event of default under the MLSC Loan Agreement, or (iii) the completion of a sale of substantially all of our assets, a change-of-control transaction or one or more financing transactions in which we receive net proceeds of $5,000,000 or more in a 12-month period
Warrants Issued To Purchase Of Common Stock       145,985
Class Of Warrant Or Right Expiration Date       Sep. 30, 2023
Notes Payable, Total 944,707      
Adjustments to Additional Paid in Capital, Warrant Issued 55,293      
Fair Value Assumptions, Risk Free Interest Rate     2.64%  
Fair Value Assumptions, Expected Dividend Rate     0.00%  
Fair Value Assumptions, Expected Term     10 years  
Fair Value Assumptions, Expected Volatility Rate     114.00%  
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 0.75   $ 0.27
Interest Expense, Debt 11,059      
Debt instrument, unamortized discount $ 955,766