Quarterly report pursuant to Section 13 or 15(d)

Liquidity and Management Plans - Additional Information (Detail)

v3.20.1
Liquidity and Management Plans - Additional Information (Detail) - USD ($)
1 Months Ended 3 Months Ended
Mar. 31, 2019
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Liquidity And Management Plans [Line Items]        
Engineering product development   $ 61,475   $ 66,500
Net loss   (8,597,736)   (11,019,468)
Net cash provided by (used in) operating activities   (7,340,111)   (7,369,177)
Proceeds of securities offerings $ 23,319,156 5,506,880 $ 4,557,693 23,319,156
Cash and cash equivalents, at carrying value, total   19,963,917 $ 21,684,089  
Technology Service [Member]        
Liquidity And Management Plans [Line Items]        
Engineering product development   $ 61,475   $ 66,500