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Accrued Expenses (Tables)
 9 Months Ended
Apr. 30, 2018
Accrued Expenses [Abstract]  
Summary of accrued expenses
    April 30,
2018		     July 31,
2017		  
    (in thousands)  
Accrued vacation   $ 960     $ 685  
Accrued payroll taxes     363       277  
Accrued payroll and bonuses     366       250  
Accrued severance     123       -  
Accrued direct cost of revenues     -       6  
Accrued advertising     43       184  
Accrued income taxes     36       36  
Accrued professional fees     142       130  
Other     80       272  
Total accrued expenses   $ 2,113     $ 1,840