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Condensed Consolidated Statements of Changes in Stockholders’ Equity - USD ($)
Preferred Stock
Series A
Preferred Stock
Series C
Common Stock
Private placement
Common Stock
Additional Paid in Capital
Private placement
Additional Paid in Capital
Accumulated Deficit
Private placement
Total
Balance at Dec. 31, 2018 $ 855,808 $ 930,311   $ 25   $ 76,652,839 $ (76,463,932)   $ 1,975,051
Balance (in shares) at Dec. 31, 2018 85,581 1,974   247,013          
Changes in Stockholders' Equity                  
Net loss             (1,983,711)   (1,983,711)
Stock based compensation expense           17,506     17,506
Conversion of preferred stock to common   $ (46,000)       46,000      
Conversion of preferred stock to common (in shares)   (46)   424          
Accretion of discount   $ 24,321       (24,321)      
Issuance of stock     $ 5   $ 486,278     $ 486,283  
Issuance of stock (in shares)     47,429            
Issuance of common stock, debt redemption       $ 1   149,917     149,918
Issuance of common stock, debt redemption (in shares)       11,882          
Balance at Mar. 31, 2019 $ 855,808 $ 908,632   $ 31   77,328,219 (78,447,643)   645,047
Balance (in shares) at Mar. 31, 2019 85,581 1,928   306,748          
Balance at Dec. 31, 2019 $ 855,808 $ 861,033   $ 375   97,651,006 (83,182,630)   16,185,592
Balance (in shares) at Dec. 31, 2019 85,581 1,827   3,760,255          
Changes in Stockholders' Equity                  
Net loss             (4,226,617)   (4,226,617)
Stock based compensation expense           8,246     8,246
Issuance of stock       $ 231   6,788,234     6,788,465
Issuance of stock (in shares)       2,311,867          
Warrant exercises           12,000     12,000
Warrant exercises (in shares)       2,000          
Balance at Mar. 31, 2020 $ 855,808 $ 861,033   $ 606   $ 104,459,486 $ (87,409,247)   $ 18,767,686
Balance (in shares) at Mar. 31, 2020 85,581 1,827   6,074,122