Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Narrative) (Details)

v3.19.1
Stockholders' Equity (Narrative) (Details) - USD ($)
1 Months Ended 5 Months Ended 12 Months Ended
Nov. 26, 2018
May 07, 2018
Mar. 15, 2018
Jan. 18, 2018
Aug. 15, 2016
Jan. 31, 2018
Nov. 30, 2017
Mar. 28, 2017
Jan. 31, 2017
Dec. 30, 2016
Dec. 31, 2016
Dec. 31, 2018
Dec. 31, 2017
Jul. 22, 2018
Mar. 23, 2016
Feb. 28, 2014
Mar. 10, 2011
Class of Stock [Line Items]                                  
Preferred Stock, par value per share                       $ 0.0001 $ 0.0001        
Preferred stock, shares authorized                       10,000,000 10,000,000        
Preferred stock, shares issued                       0 0        
Preferred stock, shares outstanding                       0 0        
Issuance of preferred stock, shares                       14,375,000 575,000        
Common stock, par value per share                       $ 0.0002 $ 0.0002        
Common stock, shares authorized                       100,000,000 100,000,000        
Common stock, shares issued                       32,492,144 4,200,310        
Common stock, shares outstanding                       32,492,144 4,200,310        
Stock based compensation                       $ 788,659 $ 689,130        
Restricted stock granted                       221,410          
Proceeds from sale of common stock                       $ 3,910,093 2,463,180        
Exercise price of warrants   $ 1.584                              
Warrants, expiry period   5 years                              
Proceeds from exercise of warrants                       $ 4,838,593        
Reverse stock split                       1-for-10          
Reduce number of issued and outstanding common stock                       4,200,000 4,200,000        
Exercise of warrants, shares                       3,054,667        
Common warrant [Member]                                  
Class of Stock [Line Items]                                  
Public offering price   $ 0.01                              
Pre-funded warrant [Member]                                  
Class of Stock [Line Items]                                  
Public offering price   1.43                              
Restricted Stock [Member] | Employees [Member]                                  
Class of Stock [Line Items]                                  
Stock based compensation                       $ 318,186 $ 169,517        
Restricted stock granted           60,375     35,989                
Vested restricted stock           15,092                      
Vesting period           3 years     1 year                
Restricted Stock [Member] | Employees [Member]                                  
Class of Stock [Line Items]                                  
Restricted stock granted                 42,850                
Vested restricted stock                 10,713                
Vesting period                 3 years                
Restricted Stock [Member] | Non Employees [Member]                                  
Class of Stock [Line Items]                                  
Stock based compensation           $ 6,369                      
Restricted stock granted           3,250                      
Vested restricted stock           812                      
Vesting period           3 years                      
Restricted Stock [Member] | Vesting immediately [Member]                                  
Class of Stock [Line Items]                                  
Vesting percentage                   25.00%              
Common Stock Warrant [Member]                                  
Class of Stock [Line Items]                                  
Price per share   $ 1.30                   $ 1.42         $ 10.00
Common stock, shares issued                             910,000    
Warrants to purchase common stock 4,600,000 9,500,000                   4,600,000   12,500 682,500 1,523  
Exercise price of warrants                             $ 0.75    
Public offering price   $ 1.44                              
Underwriting Agreement [Member]                                  
Class of Stock [Line Items]                                  
Proceeds from initial public offering                       $ 4,800,000          
Price per share                       $ 8.00          
Proceeds from sale of common stock     $ 1,300,000 $ 3,700,000               $ 4,100,000          
Number of shares sold 1,200,000                     75,000          
Warrants to purchase common stock 600,000                                
Exercise of warrants, shares                       3,054,667          
Underwriting Agreement [Member]                                  
Class of Stock [Line Items]                                  
Shares issued for initial public offering   4,875,000                              
Proceeds from initial public offering   $ 18,800,000                              
Price per share $ 1.50                     $ 4.30          
Proceeds from sale of common stock $ 12,700,000                     $ 2,400,000          
Number of shares sold 8,000,000           581,395 500,000       39,255          
Warrants to purchase common stock 4,000,000                                
Exercise price of warrants $ 1.65                                
Underwriting Agreement [Member] | Common warrant [Member]                                  
Class of Stock [Line Items]                                  
Warrants to purchase common stock   2,437,500                              
Underwriting Agreement [Member] | Pre-funded warrant [Member]                                  
Class of Stock [Line Items]                                  
Warrants to purchase common stock   4,750,000                              
Sales Agreement [Member]                                  
Class of Stock [Line Items]                                  
Proceeds from sale of common stock                     $ 2,300,000 $ 3,800,000          
Number of shares sold                     234,858 1,566,997          
Commission rate percentage         3.00%                        
Non Employees [Member] | Restricted Stock [Member]                                  
Class of Stock [Line Items]                                  
Stock based compensation                       $ 0 $ 31,000