Annual report pursuant to Section 13 and 15(d)

Intangible Asset, Net (Additional Information) (Detail)

v3.19.1
Intangible Asset, Net (Additional Information) (Detail) - USD ($)
12 Months Ended
Oct. 04, 2018
Dec. 31, 2018
Dec. 31, 2017
Accrued Liabilities, Current   $ 1,614,078 $ 1,389,771
TDG Acquisition Company LLC [Member]      
Accrued Liabilities, Current   750,000  
Amortization of Intangible Assets   $ 102,000  
Finite-Lived Intangible Assets, Remaining Amortization Period 44 months    
Asset Purchase Agreement Description Pursuant to the TDG Amendment, the Company agreed to pay to TDG $1,500,000, as follows: (a) $750,000, within three (3) days after the date of the TDG Agreement; (b) $500,000, on or before January 4, 2019; and (c) $250,000, on or before April 5, 2019.