v3.20.1
Consolidated Statements of Stockholders' Equity - USD ($)
Total
Common Stock [Member]
Additional Paid-In Capital [Member]
Accumulated Deficit [Member]
Balance at Dec. 31, 2017 $ 17,435,489 $ 2,707 $ 125,995,438 $ (108,562,656)
Balance, Shares at Dec. 31, 2017   27,070,038    
Issuance of restricted stock   $ 6 (6)  
Issuance of restricted stock, Shares   60,000    
Issuance of common stock, net of issuance costs 48,119,027 $ 1,341 48,117,686  
Issuance of common stock, net of issuance costs, Shares   13,408,200    
Issuance of common stock upon exercise of stock options $ 76,832 $ 5 76,827  
Issuance of common stock upon exercise of stock options, Shares 52,099 52,099    
Forfeiture of restricted stock, Shares   (2,333)    
Share-based compensation expense $ 3,431,862   3,431,862  
Net and comprehensive loss (10,396,635)     (10,396,635)
Balance at Dec. 31, 2018 58,666,575 $ 4,059 177,621,807 (118,959,291)
Balance, Shares at Dec. 31, 2018   40,588,004    
Issuance of warrants $ 53,440   53,440  
Cumulative effect of change in accounting principle     5,717 (5,717)
Issuance of common stock upon exercise of stock options, Shares 0      
Share-based compensation expense $ 1,085,842   1,085,842  
Net and comprehensive loss (23,270,514)     (23,270,514)
Balance at Dec. 31, 2019 $ 36,535,343 $ 4,059 $ 178,766,806 $ (142,235,522)
Balance, Shares at Dec. 31, 2019   40,588,004