Quarterly report pursuant to Section 13 or 15(d)

Going Concern - Additional Information (Detail)

v3.19.2
Going Concern - Additional Information (Detail) - USD ($)
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jan. 16, 2019
Dec. 31, 2018
Financial Support For Nonconsolidated Legal Entity [Line Items]        
Cumulative operating losses       $ 12,397,000
Net cash used in operating activities $ (659,123) $ (3,031)    
Net working capital $ (243,000)      
Convertible Promissory Note [Member]        
Financial Support For Nonconsolidated Legal Entity [Line Items]        
Face amount of debt instrument     $ 3,461,782