Annual report pursuant to Section 13 and 15(d)

License Agreements - Additional Information (Detail)

v3.5.0.2
License Agreements - Additional Information (Detail)
12 Months Ended
Dec. 15, 2015
USD ($)
Dec. 15, 2015
GBP (£)
May 31, 2016
USD ($)
May 31, 2016
GBP (£)
Jun. 30, 2016
USD ($)
Jun. 30, 2016
GBP (£)
May 31, 2016
GBP (£)
Commitments and Contingencies [Line Items]              
License payment $ 915,000 £ 600,000          
Maximum contingent payment     $ 870,000       £ 600,000
Annual license fee     $ 432,000 £ 300,000      
Subsequent Event              
Commitments and Contingencies [Line Items]              
Maximum contingent payment         $ 807,000 £ 600,000