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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, 2017 $ 7,038 $ 64,923,735 $ (2,157,226) $ (61,909,799) $ 863,748
Balance, shares at Dec. 31, 2017 7,037,799        
Cumulative effects adjustment for adoption of ASC 606 (Note 1) 71,444 71,444
Stock-based compensation 2,272,656 2,272,656
Restricted common stock grant $ 484 (484)
Restricted common stock grant, shares 484,500        
Restricted common stock forfeitures $ (34) 34
Restricted common stock forfeitures, shares (33,900)        
Issuance of common stock through underwritten public offering (net of offering expenses and underwriters' discount) $ 2,600 7,322,300 7,324,900
Issuance of common stock through underwritten public offering (net of offering expenses and underwriters' discount), shares 2,600,000        
Issuance of common stock purchase warrants in connection with issuance of subordinated notes payable 47,657 47,657
Issuance of common stock purchase warrants in connection with issuance of secured convertible debentures 1,684,251 1,684,251
Issuance of common stock purchase warrants in connection with issuance of proceeds investment agreement 932,487 932,487
Issuance of common stock upon conversion of secured convertible debentures and accrued interest $ 117 293,571 293,688
Issuance of common stock upon conversion of secured convertible debentures and accrued interest, shares 117,476        
Issuance of common stock upon conversion of secured notes payable and accrued interest $ 47 153,153 153,200
Issuance of common stock upon conversion of secured notes payable and accrued interest, shares 47,139        
Issuance of common stock upon exercise of common stock purchase warrants $ 172 425,053 425,225
Issuance of common stock upon exercise of common stock purchase warrants, shares 171,738        
Issuance of common stock upon conversion of accounts payable $ 21 63,094 63,115
Issuance of common stock upon conversion of accounts payable, shares 20,693        
Issuance of common stock In connection with issuance of secured convertible notes        
Net loss (15,544,551) (15,544,551)
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 purchase warrants in connection with issuance of secured convertible debentures 535,739 535,739
Issuance of common stock purchase warrants in connection with issuance of proceeds investment agreement        
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 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