Quarterly report pursuant to Section 13 or 15(d)

Statements of Changes in Stockholders' Equity (Deficit) (Unaudited)

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Statements of Changes in Stockholders' Equity (Deficit) (Unaudited) - USD ($)
Series C Preferred Stock [Member]
Series D Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Deficit [Member]
Total
Balance at Dec. 31, 2018 $ 99 $ 20,152,995 $ (39,112,401) $ (18,959,307)
Balance, shares at Dec. 31, 2018 987,087      
Issuance of common stock upon exercise of Series A Warrants, net of cost $ 4 2,172,676 2,172,680
Issuance of common stock upon exercise of Series A Warrants, net of cost, shares 42,412      
Issuance of common stock as inducement to exercise Series A Warrants $ 5 (5) 0
Issuance of common stock as inducement to exercise Series A Warrants, shares 50,894      
Issuance of common stock upon exercise of Series B warrants $ 36 5,635,733 5,635,769
Issuance of common stock upon exercise of Series B warrants, shares 362,905      
Issuance of common stock upon exercise of Placement Agent Warrants 16,818 16,818
Issuance of common stock upon exercise of Placement Agent Warrants, shares 400      
Stock based compensation expense 105,642 105,642
Net loss 500,213 500,213
Balance at Mar. 31, 2019 $ 144 28,083,859 (38,612,188) (10,528,185)
Balance, shares at Mar. 31, 2019 1,443,698      
Balance at Dec. 31, 2019 $ 4,816,485 $ 330 41,823,048 (43,413,370) 3,226,493
Balance, shares at Dec. 31, 2019 1,268 5,775 3,300,015      
Redemption of Series D Preferred Stock $ (1,844,860) (1,295,294) (3,140,154)
Redemption of Series D Preferred Stock, shares (2,212)        
Issuance of common stock upon Series C preferred converstion $ 13 (13)
Issuance of common stock upon Series C preferred converstion, shares (1,268) 126,800      
Issuance of common stock upon conversion of convertible note payable $ 20 (186,171) (186,151)
Issuance of common stock upon conversion of convertible note payable, shares 200,000      
Issuance of common stock and warrants $ 495 9,388,245 9,388,740
Issuance of common stock and warrants, shares 4,945,000      
Issuance of common stock upon exercise of warrants $ 241 (241)
Issuance of common stock upon exercise of warrants, shares 2,407,953      
Stock based compensation expense 96,490 96,490
Net loss (3,754,659) (3,754,659)
Balance at Mar. 31, 2020 $ 2,971,625 $ 1,099 $ 49,826,064 $ (47,168,029) $ 5,630,759
Balance, shares at Mar. 31, 2020 3,563 10,979,768