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COMMITMENTS AND CONTINGENCIES (Details) - USD ($)	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Lease Obligations
Rents charged to expense under operating leases	$ 7,100,000	$ 6,100,000
Minimum future lease commitments
2020	6,468,837
2021	5,418,617
2022	4,299,261
2023	3,216,671
2024	2,456,810
Thereafter	2,387,618
Total minimum lease payments	24,247,814
Self-insured liabilities reserve
Liabilities for workers' compensation, general liability and health insurance	1,500,000	1,600,000
Beginning balance	1,600,000	1,500,000
Charged to expense	5,400,000	5,800,000
Payments	(5,500,000)	(5,700,000)
Ending balance	$ 1,500,000	$ 1,600,000

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Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits.

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Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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Carrying amount of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property that are expected to be paid within one year (or the normal operating cycle, if longer).

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