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Accrued Expenses (Details) - USD ($)
$ in Thousands
Apr. 30, 2018
Jul. 31, 2017
Accrued Expenses [Abstract]    
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