Quarterly report pursuant to Section 13 or 15(d)

Liquidity and Management Plans - Additional Information (Detail)

v3.21.1
Liquidity and Management Plans - Additional Information (Detail) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Liquidity And Management Plans [Line Items]      
Engineering product development $ 145,065 $ 61,475  
Net loss (8,525,763) (8,597,736)  
Net cash provided by (used in) operating activities (5,976,550) (7,340,111)  
Proceeds of securities offerings   5,506,880 $ 53,556,202
Cash and cash equivalents, at carrying value, total 44,758,397   $ 50,729,661
Technology Service [Member]      
Liquidity And Management Plans [Line Items]      
Engineering product development $ 145,065 $ 61,475