Annual report pursuant to Section 13 and 15(d)

Common Stock (Narrative) (Details)

v3.10.0.1
Common Stock (Narrative) (Details)
 12 Months Ended
Oct. 19, 2018
USD ($)
$ / shares
shares
Oct. 17, 2017
USD ($)
$ / shares
shares
Jun. 12, 2017
USD ($)
$ / shares
shares
May 05, 2017
Dec. 31, 2018
shares
Dec. 31, 2017
USD ($)
shares
Aug. 30, 2018
shares
Common Stock [Abstract]              
Common Stock, Shares Authorized | shares         75,000,000 50,000,000 75,000,000
Reverse stock split       0.1      
Shares issued | shares 5,769,231 3,265,309 3,030,304        
Warrants issued | shares 5,769,231 1,632,654 1,515,152   6,115,385    
Warrants issued per share of stock issued in unit offering | $ / shares $ 1 $ 0.5 $ 0.5        
Proceeds from issuance $ 7,500,000 $ 8,000,007 $ 10,000,003        
Share price | $ / shares $ 1.30 $ 2.45 $ 3.30        
Exercise price | $ / shares $ 1.67 $ 2.85 $ 4.00        
Restricted stock issued | shares         18,075    
Warrants issued included in closing costs | shares 346,154 195,919 181,818        
Warrants exercise price | $ / shares $ 1.625            
Public offering closing costs $ 896,117 $ 830,111 $ 1,193,052        
Fair value of placement agent warrants 286,906 270,754 434,320        
Cash paid in exchange for legal services $ 627,211 559,357 758,732        
Proceeds allocated to financing expense   219,577 333,050        
Issuance cost incurred   $ 610,534 $ 860,002        
Proceeds from warrants exercised           $ 5,354,093  
Stock warrants exercised, shares | shares           1,652,623  
Stock options exercised           $ 77,500  
Stock options exercised, shares | shares           25,000