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Consolidated Statement of Stockholders' Equity - USD ($)
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Deficit [Member]
Balance (shares) at Dec. 31, 2019   34,634,172    
Balance, Beginning of Period at Dec. 31, 2019 $ 13,718,023 $ 3,464 $ 74,099,328 $ (60,384,769)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Sale of securities (shares)   13,258,172    
Sale of securities 25,740,293 $ 1,326 25,738,967  
Stock purchase plan & option exercise issuances (shares)   10,034    
Stock purchase plan & option exercise issuances 2,313 $ 1 2,312  
Stock issued for payment of services (shares)   292,965    
Stock issued for payment of services 93,749 $ 29 93,720  
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs (680,786)   (680,786)  
Stock-based compensation (shares)   136,036    
Stock-based compensation 356,846 $ 13 356,833  
Net loss (9,209,403)     (9,209,403)
Balance (shares) at Sep. 30, 2020   48,331,379    
Balance, End of Period at Sep. 30, 2020 30,021,035 $ 4,833 99,610,374 (69,594,172)
Balance (shares) at Dec. 31, 2019   34,634,172    
Balance, Beginning of Period at Dec. 31, 2019 13,718,023 $ 3,464 74,099,328 (60,384,769)
Balance (shares) at Dec. 31, 2020   50,050,167    
Balance, End of Period at Dec. 31, 2020 31,786,360 $ 5,005 102,416,131 (70,634,776)
Balance (shares) at Jun. 30, 2020   41,784,601    
Balance, Beginning of Period at Jun. 30, 2020 20,980,331 $ 4,178 89,315,525 (68,339,372)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Sale of securities (shares)   6,401,931    
Sale of securities 10,378,440 $ 641 10,377,799  
Stock issued for payment of services (shares)   97,655    
Stock issued for payment of services 31,250 $ 10 31,240  
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs (222,754)   (222,754)  
Stock-based compensation (shares)   47,192    
Stock-based compensation 108,568 $ 4 108,564  
Net loss (1,254,800)     (1,254,800)
Balance (shares) at Sep. 30, 2020   48,331,379    
Balance, End of Period at Sep. 30, 2020 30,021,035 $ 4,833 99,610,374 (69,594,172)
Balance (shares) at Dec. 31, 2020   50,050,167    
Balance, Beginning of Period at Dec. 31, 2020 31,786,360 $ 5,005 102,416,131 (70,634,776)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Sale of securities (shares)   11,186,084    
Sale of securities 46,544,688 $ 1,119 46,543,569  
Stock purchase plan & option exercise issuances (shares)   164,646    
Stock purchase plan & option exercise issuances 59,327 $ 16 59,311  
Stock issued for payment of services (shares)   22,608    
Stock issued for payment of services 109,784 $ 2 109,782  
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs (1,094,929)   (1,094,929)  
Stock-based compensation (shares)   681,068    
Stock-based compensation 633,219 $ 68 633,151  
Shares withheld to cover statutory taxes (shares)   (200,942)    
Shares withheld to cover statutory taxes (437,644) $ (20) (437,624)  
Net loss (3,584,881)     (3,584,881)
Balance (shares) at Sep. 30, 2021   61,903,631    
Balance, End of Period at Sep. 30, 2021 74,015,924 $ 6,190 148,229,391 (74,219,657)
Balance (shares) at Jun. 30, 2021   61,809,573    
Balance, Beginning of Period at Jun. 30, 2021 75,273,633 $ 6,181 148,006,352 (72,738,900)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Stock purchase plan & option exercise issuances (shares)   27,995    
Stock purchase plan & option exercise issuances 11,241 $ 2 11,239  
Stock issued for payment of services (shares)   7,716    
Stock issued for payment of services 37,544 $ 1 37,543  
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs (14,094)   (14,094)  
Stock-based compensation (shares)   76,745    
Stock-based compensation 229,039 $ 8 229,031  
Shares withheld to cover statutory taxes (shares)   (18,398)    
Shares withheld to cover statutory taxes (40,682) $ (2) (40,680)  
Net loss (1,480,757)     (1,480,757)
Balance (shares) at Sep. 30, 2021   61,903,631    
Balance, End of Period at Sep. 30, 2021 $ 74,015,924 $ 6,190 $ 148,229,391 $ (74,219,657)