Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Detail)

v3.2.0.727
Commitments and Contingencies - Additional Information (Detail)
1 Months Ended 3 Months Ended 6 Months Ended
Jul. 21, 2015
USD ($)
Jun. 30, 2015
USD ($)
Agreement
Jun. 30, 2014
Jun. 30, 2015
USD ($)
Agreement
Jun. 30, 2014
USD ($)
Jun. 30, 2015
USD ($)
Agreement
Jun. 30, 2014
USD ($)
Commitment And Contingencies [Line Items]              
Rent expense       $ 219,000 $ 236,000 $ 437,000 $ 467,000
Number of additional license agreements | Agreement   2   2   2  
License agreements fee   $ 2,300,000   $ 2,300,000   $ 2,300,000  
Services agreement, days required between notice and termination of agreement     30 days        
Maximum [Member]              
Commitment And Contingencies [Line Items]              
Milestone payments from the Company           19,000,000  
Discontinued Operations, Disposed of by Sale [Member]              
Commitment And Contingencies [Line Items]              
Success fee payable   $ 500,000   $ 500,000   $ 500,000  
Percentage of transaction consideration   4.00%   4.00%   4.00%  
Discontinued Operations, Disposed of by Sale [Member] | Subsequent Event [Member]              
Commitment And Contingencies [Line Items]              
Payment of success fee $ 450,000            
Discontinued Operations, Held-for-sale [Member]              
Commitment And Contingencies [Line Items]              
Payment of success fee   $ 50,000