Quarterly report pursuant to Section 13 or 15(d)

Related Party Note - Additional Information (Detail)

v3.2.0.727
Related Party Note - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Related Party Transaction [Line Items]          
Costs and Expenses, Related Party $ 44,400 $ 38,400 $ 87,700 $ 38,400  
Cb Pharma Acquisition Corp [Member]          
Related Party Transaction [Line Items]          
Accounts Receivable, Related Parties $ 100,000   100,000   $ 0
Collaboration Agreement with TGTX [Member]          
Related Party Transaction [Line Items]          
Payments for Fees     $ 500,000