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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)   6,856,241    
Sale of securities $ 15,361,853 $ 685 15,361,168  
Stock purchase plan issuances (shares) 9,665 10,034    
Stock purchase plan issuances $ 2,313 $ 1 2,312  
Stock issued for payment of services (shares)   195,310    
Stock issued for payment of services 62,499 $ 19 62,480  
Stock issuance costs (458,032)   (458,032)  
Stock-based compensation (shares)   88,844    
Stock-based compensation 248,278 $ 9 248,269  
Net loss (7,954,603)     (7,954,603)
Balance (shares) at Jun. 30, 2020   41,784,601    
Balance, End of Period at Jun. 30, 2020 20,980,331 $ 4,178 89,315,525 (68,339,372)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Net cash used for operating activities (1,820,738)      
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 Mar. 31, 2020   34,773,051    
Balance, Beginning of Period at Mar. 31, 2020 7,713,057 $ 3,477 74,257,810 (66,548,230)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Sale of securities (shares)   6,856,241    
Sale of securities 15,361,853 $ 685 15,361,168  
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)   97,655    
Stock issued for payment of services 31,249 $ 9 31,240  
Stock issuance costs (455,706)   (455,706)  
Stock-based compensation (shares)   47,620    
Stock-based compensation 118,707 $ 6 118,701  
Net loss (1,791,142)     (1,791,142)
Balance (shares) at Jun. 30, 2020   41,784,601    
Balance, End of Period at Jun. 30, 2020 20,980,331 $ 4,178 89,315,525 (68,339,372)
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 issuances (shares) 3,376      
Stock purchase plan & option exercise issuances (shares)   136,651    
Stock purchase plan & option exercise issuances $ 48,086 $ 14 48,072  
Stock issued for payment of services (shares)   14,892    
Stock issued for payment of services 72,240 $ 1 72,239  
Stock issuance costs (1,080,835)   (1,080,835)  
Stock-based compensation (shares)   604,323    
Stock-based compensation 404,180 $ 60 404,120  
Shares withheld to cover statutory taxes (shares)   (182,544)    
Shares withheld to cover statutory taxes (396,962) $ (18) (396,944)  
Net loss (2,104,124)     (2,104,124)
Balance (shares) at Jun. 30, 2021   61,809,573    
Balance, End of Period at Jun. 30, 2021 75,273,633 $ 6,181 148,006,352 (72,738,900)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Net cash used for operating activities (3,141,704)      
Balance (shares) at Mar. 31, 2021   59,123,449    
Balance, Beginning of Period at Mar. 31, 2021 63,298,227 $ 5,912 135,919,529 (72,627,214)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Sale of securities (shares)   2,484,393    
Sale of securities 12,186,676 $ 249 12,186,427  
Stock purchase plan & option exercise issuances (shares)   135,141    
Stock purchase plan & option exercise issuances 45,942 $ 14 45,928  
Stock issued for payment of services (shares)   7,716    
Stock issued for payment of services 37,544   37,544  
Stock issuance costs (333,878)   (333,878)  
Stock-based compensation (shares)   77,420    
Stock-based compensation 206,194 $ 8 206,186  
Shares withheld to cover statutory taxes (shares)   (18,546)    
Shares withheld to cover statutory taxes (55,386) $ (2) (55,384)  
Net loss (111,686)     (111,686)
Balance (shares) at Jun. 30, 2021   61,809,573    
Balance, End of Period at Jun. 30, 2021 $ 75,273,633 $ 6,181 $ 148,006,352 $ (72,738,900)