Accrued Expenses (Details) - USD ($) $ in Thousands	Apr. 30, 2017	Jul. 31, 2016
Accrued Expenses [Abstract]
Accrued vacation	$ 653	$ 494
Accrued payroll taxes	459	210
Accrued payroll and bonuses	156	72
Accrued direct cost of revenues	6	111
Accrued advertising	175	242
Accrued income taxes	65	119
Other	402	239
Total accrued expenses	$ 1,916	$ 1,487