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Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Common Stock and Warrants Narrative) (Details)

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Stockholders' Equity (Common Stock and Warrants Narrative) (Details) - USD ($)
 1 Months Ended 3 Months Ended
Jul. 25, 2017
May 24, 2017
Jul. 31, 2017
Apr. 30, 2017
Stockholders Equity [Line Items]        
Stock issued during period from exercise of warrants     89,480  
Percentage of investment amount paid by company   1.50%    
Investment amount paid by company to investors   $ 112,500    
Common stock, shares issued     13,610,159 13,520,679
Secured Debt [Member] | Runway Growth Capital Fund [Member]        
Stockholders Equity [Line Items]        
Debt term 4 years      
Warrant [Member]        
Stockholders Equity [Line Items]        
Warrants granted     224,174  
Warrant [Member] | Secured Debt [Member] | Runway Growth Capital Fund [Member]        
Stockholders Equity [Line Items]        
Warrants granted 224,174      
Warrants granted, exercise price $ 6.87      
Term of award P5Y