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Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016
Income Taxes (Textual)
Undistributed foreign earnings included in accumulated deficit	$ 1,800,000
Accrued interest on income taxes
Federal and state net operating loss carryforwards expire date	Jul. 31, 2036
Research and development credit
Other current assets	$ 427,000	107,000
Selling, general and administrative expense	8,468,000	$ 7,755,000
Federal operating loss carryforward [Member]
Income Taxes (Textual)
Net operating loss ("NOL") carryforwards	2,000,000
State operating loss carryforward [Member]
Income Taxes (Textual)
Net operating loss ("NOL") carryforwards	600,000
Norway SkatteFUNN [Member]
Research and development credit
Other current assets	260,000
Selling, general and administrative expense	$ 289,000

X

- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

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Amount of current assets classified as other.

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.

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Amount of interest expense accrued for an underpayment of income taxes.

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