Quarterly report pursuant to Section 13 or 15(d)

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

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Stockholders' Equity (Preferred Stock, Common Stock and Warrants Narrative) (Details) - USD ($)
1 Months Ended 3 Months Ended 12 Months Ended
Jun. 18, 2019
Dec. 24, 2018
Sep. 30, 2018
Jul. 31, 2019
Jul. 31, 2018
Apr. 30, 2019
Jun. 28, 2019
Jun. 07, 2019
Jun. 03, 2019
Stockholders Equity [Line Items]                  
Preferred stock, shares authorized       1,000,000   1,000,000      
Common stock, shares authorized       40,000,000   40,000,000      
Proceeds from options exercised       $ 45,190 $ 7,817        
Common stock, shares issued       18,913,527   18,665,551      
Restricted stock issued, value                
Payment of origination fees       $ 29,832        
Compensation cost of unvested shares yet to be recognized, period of recognition       2 years          
Per share price       $ 0.001   $ 0.001      
Investor [Member]                  
Stockholders Equity [Line Items]                  
Restricted shares granted           25,000      
Restricted shares granted, value           $ 122,250      
Common Stock [Member]                  
Stockholders Equity [Line Items]                  
Restricted stock issued, shares       104,803          
Restricted stock issued, value       $ 105          
Common Stock [Member] | Maximum [Member]                  
Stockholders Equity [Line Items]                  
Preferred stock, shares authorized             250,000,000    
Common Stock [Member] | Minimum [Member]                  
Stockholders Equity [Line Items]                  
Preferred stock, shares authorized             40,000,000    
Preferred Stock [Member] | Maximum [Member]                  
Stockholders Equity [Line Items]                  
Preferred stock, shares authorized             10,000,000    
Preferred Stock [Member] | Minimum [Member]                  
Stockholders Equity [Line Items]                  
Preferred stock, shares authorized             1,000,000    
Warrant [Member]                  
Stockholders Equity [Line Items]                  
Compensation cost of unvested shares yet to be recognized       $ 1,600,000          
Nonvested shares outstanding       99,803          
Director [Member]                  
Stockholders Equity [Line Items]                  
Restricted stock issued, shares       30,131          
Restricted stock issued, value       $ 122,332          
Former Director [Member]                  
Stockholders Equity [Line Items]                  
Common stock, shares issued                 9,806
Former Director [Member] | Warrant [Member]                  
Stockholders Equity [Line Items]                  
Common stock, shares issued                 21,930
Chairman and Chief Executive Officer [Member]                  
Stockholders Equity [Line Items]                  
Common stock, shares issued               9,597  
Restricted Stock [Member]                  
Stockholders Equity [Line Items]                  
Award vesting period   36 months              
Shares granted   24,672              
Restricted Stock [Member] | Investor [Member]                  
Stockholders Equity [Line Items]                  
Number of shares vested           5,000      
Restricted Stock [Member] | Andrew Kaplan Current Director [Member]                  
Stockholders Equity [Line Items]                  
Options granted 5,131                
Restricted Stock [Member] | Two former directors [Member]                  
Stockholders Equity [Line Items]                  
Options granted 25,000                
Restricted Stock [Member] | Director [Member]                  
Stockholders Equity [Line Items]                  
Restricted shares granted, value   $ 126,320              
Restricted Stock [Member] | Chief Financial Officer [Member]                  
Stockholders Equity [Line Items]                  
Restricted shares granted     25,000            
Award vesting period     36 months            
Compensation cost of unvested shares yet to be recognized     $ 180,000            
Compensation cost of unvested shares yet to be recognized, period of recognition     36 months            
Market price of company stock     $ 7.15            
Warrant Transaction One [Member]                  
Stockholders Equity [Line Items]                  
Stock issued during period from exercise of warrants       101,894          
Warrant Transaction Two [Member]                  
Stockholders Equity [Line Items]                  
Stock issued during period from exercise of warrants       19,403          
Proceeds from exercise of warrants       $ 43,860          
Warrant Transaction Three [Member]                  
Stockholders Equity [Line Items]                  
Stock issued during period from exercise of warrants       21,876          
Proceeds from exercise of warrants       $ 45,190