Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statements of Changes in Stockholders' Equity

v3.19.1
Consolidated Statements of Changes in Stockholders' Equity - USD ($)
Total
Common stock
Preferred Stock
Additional paid in capital
Contingently issuable stock
Accumulated deficit
Balance at the beginning (in shares) at Dec. 31, 2017   31,266,989 0      
Balance at the beginning at Dec. 31, 2017 $ 27,859,608 $ 31,268 $ 0 $ 83,338,136 $ 2,655,464 $ (58,165,260)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of stock options and warrants (in shares)   143,346        
Exercise of stock options and warrants 363,390 $ 143   363,247    
Stock-based compensation 242,824     242,824    
Net loss (3,882,847)         (3,882,847)
Balance at the end (in shares) at Mar. 31, 2018   31,410,335 0      
Balance at the end at Mar. 31, 2018 24,582,975 $ 31,411 $ 0 83,944,207 2,655,464 (62,048,107)
Balance at the beginning (in shares) at Dec. 31, 2018   40,804,189 2,857,143      
Balance at the beginning at Dec. 31, 2018 20,907,748 $ 40,804 $ 2,857 119,082,157 0 (98,218,070)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Issuance of stock (in shares)   1,818,182        
Issuance of stock 8,975,960 $ 1,818   8,974,142    
Exercise of stock options and warrants (in shares)   31,288        
Exercise of stock options and warrants 94,177 $ 31   94,146    
Stock-based compensation 596,693     596,693    
Restricted Stock Units vested during period (in shares)   100,000        
Restricted Stock Units vested during period 0 $ 101   (101)    
Net loss (7,454,048)         (7,454,048)
Balance at the end (in shares) at Mar. 31, 2019   42,753,659 2,857,143      
Balance at the end at Mar. 31, 2019 $ 23,120,530 $ 42,754 $ 2,857 $ 128,747,037 $ 0 $ (105,672,118)