STOCK-BASED COMPENSATION (Narrative) (Details) - USD ($)	12 Months Ended
Jul. 31, 2020	Jul. 31, 2019
Restricted Stock
Share-based Compensation Award Disclosure
Share-based compensation expense	$ 2,560,000	$ 1,834,000
Tax benefit from compensation expense	$ 808,000	$ 579,000
2006 Plan
Share-based Compensation Award Disclosure
Number of shares authorized	1,219,500
Number of shares available for grant	370,836
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

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Number of shares authorized for issuance under share-based payment arrangement.

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