Quarterly report pursuant to Section 13 or 15(d)

Debt and Other Financing Arrangements - Schedule of Debt (Detail)

v3.19.3
Debt and Other Financing Arrangements - Schedule of Debt (Detail) - USD ($)
Sep. 30, 2019
Dec. 31, 2018
Debt Instrument [Line Items]    
Notes payable $ 4,208,569 $ 42,875
Financing agreement with FlatIron capital maturing in May 31, 2019 [Member]    
Debt Instrument [Line Items]    
Notes payable   $ 42,875
Financing agreement with FlatIron capital maturing in June 1, 2020 [Member]    
Debt Instrument [Line Items]    
Notes payable 104,310  
Convertible Senior Note [Member]    
Debt Instrument [Line Items]    
Notes payable 3,461,782  
Promissory note issued by a financial institution maturing in May 30, 2025 [Member]    
Debt Instrument [Line Items]    
Notes payable 630,049  
Promissory note issued by a financial institution maturing in August 26, 2023 [Member]    
Debt Instrument [Line Items]    
Notes payable $ 12,428