Annual report pursuant to Section 13 and 15(d)

Common Stock (Narrative) (Details)

v3.8.0.1
Common Stock (Narrative) (Details)
12 Months Ended
Oct. 17, 2017
USD ($)
$ / shares
shares
Jun. 12, 2017
USD ($)
$ / shares
shares
May 05, 2017
$ / shares
shares
Sep. 19, 2016
USD ($)
$ / shares
shares
Mar. 02, 2016
USD ($)
$ / shares
shares
Dec. 03, 2015
USD ($)
shares
Nov. 12, 2015
USD ($)
$ / shares
shares
Dec. 31, 2017
$ / shares
shares
Dec. 31, 2016
$ / shares
shares
Dec. 31, 2015
USD ($)
$ / shares
shares
Mar. 16, 2015
USD ($)
Common Stock [Abstract]                      
Reverse stock split     0.1                
Common stock, par value | $ / shares     $ 0.0001         $ 0.0001 $ 0.0001    
Common stock authorized | shares     50,000,000         50,000,000 50,000,000    
Preferred stock authorized | shares     10,000,000         10,000,000 10,000,000    
Aggregate offering price of common stock which the Company may issue and sell                     $ 40,000,000
Proceeds from issuance after deducting commissions and other transaction costs                   $ 1,005,715  
Shares issued | shares 3,265,309 3,030,304   2,400,000 1,562,500   1,666,667 0 0 140,707  
Number of warrants, issued | shares 1,632,654 1,515,152   1,800,000 1,171,875   1,250,000 3,525,543 3,194,000    
Warrants issued per share of stock issued in unit offering | $ / shares $ 0.5 $ 0.5   $ 0.75 $ 0.75   $ 0.75        
Share Price | $ / shares 2.45 3.30   2.50 3.20   4.20     $ 7.4100  
Stock Warrants, Exercise Price | $ / shares $ 2.85 $ 4.00   $ 3.00 $ 4.20   $ 5.30        
Proceeds from issuance $ 8,000,007 $ 10,000,003   $ 6,000,000 $ 5,000,000   $ 7,000,000     $ 1,042,573  
Public offering closing costs $ 830,111 $ 1,193,052   $ 575,094 $ 575,751   $ 740,323        
Warrants issued included in closing costs | shares 195,919 181,818   144,000 78,125   83,333        
Fair value of placement agent warrants $ 270,754 $ 434,320   $ 117,130 $ 155,938   $ 174,417        
Cash paid in exchange for legal services 559,357 758,732   457,964 419,813   565,906        
Proceeds allocated to financing expense 219,577 333,050   143,203 169,887   211,116        
Issuance cost incurred $ 610,534 $ 860,002   $ 431,891 $ 405,864   $ 529,207        
Retirement of treasury stock, shares | shares           11,321          
Retirement of treasury stock           $ 128,410