Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions (Details Textual)

v3.10.0.1
Related Party Transactions (Details Textual)
1 Months Ended 9 Months Ended
Jan. 31, 2018
$ / shares
shares
Sep. 30, 2018
USD ($)
investor
$ / shares
shares
Dec. 31, 2017
USD ($)
$ / shares
Sep. 30, 2017
USD ($)
$ / shares
Dec. 31, 2016
$ / shares
Related Party Transactions (Textual)          
Warrant exercise price | $ / shares   $ 2.79      
Payments of Financing Costs | $   $ 20,000      
Charles Schwab & Co Inc. [Member]          
Related Party Transactions (Textual)          
Aggregate principal amount | $     $ 8,333 $ 27,778  
Michael Hammons [Member]          
Related Party Transactions (Textual)          
Warrant exercise price | $ / shares $ 1.50 $ 0.30      
Warrants to purchase | shares 2,222 55,556      
Convertible Senior Secured Promissory Notes [Member]          
Related Party Transactions (Textual)          
Number of accredited investors | investor   26      
Aggregate principal amount | $   $ 2,800,000      
Warrant exercise price | $ / shares   $ 1.50 $ 1.50 $ 1.50 $ 3.00
Placement agent fees | $   $ 2,500,000      
Accrued liabilities | $   $ 100,000      
2018 Senior Notes [Member]          
Related Party Transactions (Textual)          
Warrant term   5 years      
Warrants to purchase an aggregate shares of common stock | shares   878,889      
Warrant exercise price | $ / shares   $ 0.30      
2017 Senior Notes [Member]          
Related Party Transactions (Textual)          
Warrant term   5 years      
Warrants to purchase an aggregate shares of common stock | shares   977,773      
Warrant exercise price | $ / shares   $ 1.50