EMPLOYEES' RETIREMENT PLANS (Details) - USD ($)	12 Months Ended
Jul. 31, 2021	Jul. 31, 2020
Retirement Benefits [Abstract]
Pension contributions	$ 441,512	$ 424,401
Employer contributions	$ 64,771	$ 59,434
Minimum contribution rate	9.10%

No definition available.

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- Definition

Amount of cost for defined contribution plan.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Increase (decrease) in employer's contractual contribution rate to multiemployer plan.

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Amount of cost for employer contribution to multiemployer pension plan determined to be individually significant.

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