XML 54 R39.htm IDEA: XBRL DOCUMENT v3.19.1
EQUITY TRANSACTIONS, Public and Private Offerings (Details) - USD ($)
12 Months Ended
Sep. 27, 2018
Aug. 21, 2018
Jul. 30, 2018
Jul. 25, 2018
Jan. 24, 2018
Nov. 21, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Stockholders' Equity [Abstract]                      
Common stock, share price (in dollars per share)           $ 4.115          
Number of warrants to purchase common stock (in shares)         153,060 1,475,000          
Warrant price (in dollars per share)           $ 0.01          
Warrants exercise price (in dollars per share)         $ 4.115 $ 4.115 $ 0.75 $ 4.88 $ 1.80 $ 1.80 $ 0
Warrants expiration period             5 years        
Gross proceeds for issue of common stock         $ 629,841.90 $ 6,084,375          
Proceeds for issue of common stock             $ 6,327,954 $ 4,898,900      
Changes in fair value of warrants liability             $ 2,760,819 $ 0      
Initial Securities Purchase Agreement [Member]                      
Stockholders' Equity [Abstract]                      
Public offering of shares (in shares)     3,250,000                
Number of warrants to purchase common stock (in shares)       4,000,001              
Warrants exercise price (in dollars per share)       $ 1.60              
Number of common shares to be issued (in shares)       5,000,000              
Total consideration of warrants to purchase common stock       $ 6,000,000              
Proceeds for issue of common stock     $ 6,000,000                
Initial per share purchase price (in dollars per share)       $ 1.20              
Term of warrants             5 years        
Number of months considered for cashless basis registration             6 months        
Second Securities Purchase Agreement [Member]                      
Stockholders' Equity [Abstract]                      
Number of warrants to purchase common stock (in shares)   400,333                  
Number of common shares to be issued (in shares)   500,417                  
Total consideration of warrants to purchase common stock   $ 600,000                  
Proceeds for issue of common stock   $ 600,000                  
Term of warrants             5 years        
Private Placement and Securities Purchase Agreement [Member]                      
Stockholders' Equity [Abstract]                      
Number of warrants to purchase common stock (in shares)             4,400,334        
Percentage of purchase price of shares consider for price adjustment 80.00%                    
Percentage of exercise price of warrants considered for price adjustment 110.00%                    
Number of trading days considered for lowest of the average daily prices             6 days        
Number of shares registered under effective registration as issued or issuable (in shares) 22,758,621           18,206,897        
Number of shares issuable under purchaser warrants (in shares) 22,544,139           4,337,242        
Aggregate exercise price of warrants             $ 7,040,534.40        
Post-Price adjustment exercise price (in dollars per share)             $ 0.3123        
Aggregate fair value of warrants issued             $ 1,429,000        
Changes in fair value of warrants liability             $ 2,760,819        
Private Placement and Securities Purchase Agreement [Member] | Warrants [Member]                      
Stockholders' Equity [Abstract]                      
Expected term             5 years        
Expected volatility             111.80%        
Risk-free interest rate             2.37%        
Expected dividend yield             0.00%        
Private Placement and Securities Purchase Agreement [Member] | Minimum [Member]                      
Stockholders' Equity [Abstract]                      
Increase in ownership percentage condition one             4.99%        
Increase in ownership percentage condition two             9.99%        
Private Placement and Securities Purchase Agreement [Member] | Maximum [Member]                      
Stockholders' Equity [Abstract]                      
Warrants exercise price (in dollars per share) $ 0.29                    
Placement Agent [Member]                      
Stockholders' Equity [Abstract]                      
Warrants exercise price (in dollars per share)             $ 1.32        
Aggregate fair value of warrants issued             $ 49,000        
Percentage of gross proceeds from sale of securities consider for fee             7.00%        
Placement Agent [Member] | Maximum [Member]                      
Stockholders' Equity [Abstract]                      
Number of warrants to purchase common stock (in shares)             150,000        
Common Stock [Member]                      
Stockholders' Equity [Abstract]                      
Public offering of shares (in shares)           1,475,000   1,475,000