Liquidity & Going Concern Uncertainty (Details Narrative) - USD ($)	Apr. 30, 2019	Jul. 31, 2018	Apr. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Other Than Options, Expected to Vest
Cumulative net loss	$ 122,659,000	$ 116,924,000
Cash and cash equivalents	340,000	851,000	$ 1,018,000
Current liabilities	523,000	$ 1,281,000
Long-term debt

No definition available.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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