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Restricted stock units outstanding.

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The number of shares expected to vest other than stock options.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Unrecognized cost of unvested options awarded to employees as compensation.

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Date the equity-based award expires, in CCYY-MM-DD format.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of additional shares authorized for issuance under an established share-based compensation plan.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Description of pertinent provisions of equity-based compensation awards that have actual or potential impact upon the company's financial statements.

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The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

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Percentage of vesting of share-based compensation awards.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

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Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of shares related to Restricted Stock Award forfeited during the period.

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Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

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Gross number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP). Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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Share-Based Compensation (Details Narrative) - USD ($)	1 Months Ended	3 Months Ended
Share-Based Compensation (Details Narrative) - USD ($)	Feb. 29, 2016	Oct. 31, 2017	Oct. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options issued to purchase common stock		200,000
2007 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares increase under the plan	4,000,000
Share-based compensation, expiration date	Feb. 04, 2026
Contractual life vesting periods	10 years
Number of shares available for issuance under the plan		561,000
Stock Option Plans [Member] \| Scientific Advisory Board [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options issued to purchase common stock			100,000
Option vested description			The options vested quarterly over one year and carry a five-year term.
Board of Directors [Member] \| Stock Option Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options issued to purchase common stock		200,000
Restricted Stock Units RSU [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units outstanding		2,485,000
Shares expected to vest		1,300,000
Unrecognized non-cash compensation costs		$ 1,278,000
Unrecognized non-cash compensation costs, weighted average period		3 years 7 days
Share-based compensation		$ 312,000	$ 52,000
Restricted Stock Units RSU [Member] \| Third-party Consultants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted stock shares issued		300,000
Aggregate number of vested shares of common stock		300,000
Restricted Stock Units RSU [Member] \| Board of Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock issued during period, shares, share-based compensation		150,000
January 15 2018 [Member] \| Board of Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option awards vesting percentage		50.00%
January 15 2018 [Member] \| Board of Directors [Member] \| Stock Option Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option awards vesting percentage		50.00%
January 15 2019 [Member] \| Board of Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option awards vesting percentage		50.00%
January 15 2019 [Member] \| Board of Directors [Member] \| Stock Option Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option awards vesting percentage		50.00%
Stock Option Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation		$ 395,000	$ 226,000
Weighted-average contractual term of options outstanding		5 years 6 months 18 days
Stock options were exercisable		3,163,593
Exercise price		$ 1.35
Aggregate intrinsic value		$ 432,000
Weighted average contractual term		3 years 1 month 24 days
Weighted average grant date fair value for options granted		$ 0.85
Unrecognized compensation cost of unvested stock option grants		$ 1,675,000
Weighted-average contractual term of expected to vest		3 years 15 days