Quarterly report pursuant to Section 13 or 15(d)

Key Recent Events and Management Plans (Details Narrative)

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Key Recent Events and Management Plans (Details Narrative) - USD ($)
 6 Months Ended 12 Months Ended
Jun. 30, 2018
Dec. 31, 2017
Oct. 05, 2016
Jan. 09, 2015
Number of shares granted      
Proceeds from public offering   $ 9,478,897    
Additional expenses from exercise of warrants $ 7,155,200 $ 981,948    
August 2, 2018 [Member]        
Cash and marketable securities 7,500,000      
Working capital $ 8,400,000      
2013 Plan [Member]        
Number of shares granted 400,000      
2013 Plan [Member] | Minimum [Member]        
Number of shares available under stock plan     800,000 400,000
2013 Plan [Member] | Maximum [Member]        
Number of shares available under stock plan     830,000 800,000