LEASES (Schedule of rental expense) (Details) - USD ($)	12 Months Ended
Jul. 31, 2019	Jul. 31, 2018
Leases [Abstract]
Minimum rental expense	$ 1,985,695	$ 1,750,859
Contingent rental expense	1,164,632	1,034,762
Operating leases rent expense minimum and contingent rentals	3,150,327	2,785,621
Sublease rental income	7,126,437	6,901,958
Excess of sublease income over expense	$ 3,976,110	$ 4,116,337

- Definition

The increases or decreases in lease payments that result from changes occurring after the inception of the lease in the factors (other than the passage of time) on which lease payments are based, except that any escalation of minimum lease payments relating to increases in construction or acquisition cost of the leased property or for increases in some measure of cost or value during the construction or preconstruction period, are excluded from contingent rentals. Contingent rentals also may include amounts for which the triggering events have not yet occurred or the specified targets for which have not yet been achieved (such as sales based percentage rent), but which events are considered probable of occurring or which specified targets are considered probable of being achieved.

+ References + Details