STOCK-BASED COMPENSATION (Narrative) (Details) - USD ($)	12 Months Ended
Jul. 31, 2019	Jul. 31, 2018
Restricted Stock
Share-based Compensation Award Disclosure
Share-based compensation expense	$ 1,834,000	$ 1,349,000
Tax benefit from compensation expense	$ 579,000	$ 426,000
2006 Plan
Share-based Compensation Award Disclosure
Number of shares authorized	937,500
Number of shares available for grant	74,263
2006 Plan - Restricted Stock \| Minimum
Share-based Compensation Award Disclosure
Award vesting period (years)	2 years
2006 Plan - Restricted Stock \| Maximum
Share-based Compensation Award Disclosure
Award vesting period (years)	5 years

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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The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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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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