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Consolidated Statements of Stockholders' Equity (Deficit) - USD ($)
Common Stock [Member]
Additional Paid in Capital [Member]
Treasury Stock [Member]
Accumulated Deficit [Member]
Total
Balance at Dec. 31, 2018 $ 10,445 $ 78,117,507 $ (2,157,226) $ (77,382,906) $ (1,412,180)
Balance, shares at Dec. 31, 2018 10,445,445        
Stock-based compensation 2,112,090 2,112,090
Restricted common stock grant $ 522 (522)
Restricted common stock grant, shares 522,110        
Restricted common stock forfeitures $ (5) 5
Restricted common stock forfeitures, shares (5,370)        
Issuance of common stock upon conversion of secured convertible notes and interest $ 499 697,568 698,067
Issuance of common stock upon conversion of secured convertible notes and interest, shares 498,625        
Issuance of common stock In connection with issuance of secured convertible notes $ 89 118,660 118,749
Issuance of common stock In connection with issuance of secured convertible notes, shares 89,285        
Issuance of common stock purchase warrants in connection with issuance of secured convertible debentures 535,739 535,739
Issuance of common stock upon exercise of warrants $ 529 1,563,471 1,564,000
Issuance of common stock upon exercise of warrants, shares 529,000        
Issuance of common stock purchase warrants in connection with issuance of unsecured promissory note payable 71,869 71,869
Net loss (10,005,713) (10,005,713)
Balance at Dec. 31, 2019 $ 12,079 83,216,387 (2,157,226) (87,388,619) (6,317,379)
Balance, shares at Dec. 31, 2019 12,079,095        
Stock-based compensation 1,462,270 1,462,270
Restricted common stock grant $ 846 (846)
Restricted common stock grant, shares 846,591        
Restricted common stock forfeitures $ (37) 37
Restricted common stock forfeitures, shares (36,750)        
Issuance of common stock upon conversion of secured convertible notes and interest $ 2,625 3,022,060 3,024,685
Issuance of common stock upon conversion of secured convertible notes and interest, shares 2,624,212        
Issuance of common stock through underwritten public offering at $1.15 per share (net of offering expenses and underwriters' discount) $ 2,522 2,499,614 2,502,136
Issuance of common stock through underwritten public offering at $1.15 per share (net of offering expenses and underwriters' discount), shares 2,521,740        
Issuance of common stock through underwritten public offering at $1.65 per share (net of offering expenses and underwriters' discount) $ 3,554 5,346,859 5,350,413
Issuance of common stock through underwritten public offering at $1.65 per share (net of offering expenses and underwriters' discount), shares 3,554,545        
Issuance of common stock through underwritten public offering at $2.15 per share (net of offering expenses and underwriters' discount) $ 2,540 4,974,152 4,976,692
Issuance of common stock through underwritten public offering at $2.15 per share (net of offering expenses and underwriters' discount), shares 2,539,534        
Issuance of common stock upon exercise of common stock purchase warrants $ 2,694 5,200,428 5,203,122
Issuance of common stock upon exercise of common stock purchase warrants, shares 2,693,867        
Issuance of common stock purchase warrants in connection with issuance of secured convertible notes 721,141 721,141
Issuance of common stock upon exercise of stock options $ 2 7,798 7,800
Issuance of common stock upon exercise of stock options, shares 1,875        
Issuance of common stock for services rendered $ 10 30,690 30,700
Issuance of common stock for services rendered, shares 10,000        
Issuance of common stock purchase warrants in connection with issuance of unsecured promissory note payable 20,806 20,806
Net loss (2,625,881) (2,625,881)
Balance at Dec. 31, 2020 $ 26,835 $ 106,501,396 $ (2,157,225) $ (90,014,500) $ 14,356,506
Balance, shares at Dec. 31, 2020 26,834,709