Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets - Additional Information (Detail)

v3.8.0.1
Intangible Assets - Additional Information (Detail) - USD ($)
3 Months Ended
Feb. 28, 2018
Feb. 28, 2017
Finite-Lived Intangible Assets, Net [Abstract]    
Amortization expense $ 11,000 $ 9,000