Quarterly report pursuant to Section 13 or 15(d)

Going Concern - Additional Information (Detail)

v3.19.3
Going Concern - Additional Information (Detail) - USD ($)
9 Months Ended
Sep. 30, 2019
Jan. 16, 2019
Dec. 31, 2018
Financial Support For Nonconsolidated Legal Entity [Line Items]      
Cumulative operating losses     $ 12,677,000
Net cash used in operating activities $ (908,000)    
Net working capital $ (267,000)    
Convertible Promissory Note [Member]      
Financial Support For Nonconsolidated Legal Entity [Line Items]      
Face amount of debt instrument   $ 3,461,782