Quarterly report pursuant to Section 13 or 15(d)

Inventories, Net (Additional Information) (Detail)

v3.8.0.1
Inventories, Net (Additional Information) (Detail) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Inventory Write-down $ 1,151,482 $ 0 $ 1,151,482 $ 0