Income Taxes (Narrative) (Details) - USD ($)	6 Months Ended
	Jan. 31, 2017	Jan. 31, 2016
Operating Loss Carryforwards [Line Items]
Reserve for uncertain tax positions	$ 0	$ 0
Federal [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	1,717,000
State [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	8,357,000
International [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 2,008,000
International [Member] | Netherlands [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards expiration period	9 years
NOL valuation allowance	$ 460,000	542,000
Net deferred tax assets	0	$ 0
International [Member] | India [Member]
Operating Loss Carryforwards [Line Items]
NOL valuation allowance	61,000
Net deferred tax assets	$ 0