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DEBT - Maturities (Details)	Sep. 30, 2018 USD ($) instrument item
Aggregate maturities of notes payable
October 2018 - September 2019	$ 2,284,000
October 2019 - September 2020	2,173,000
October 2020 - September 2021	2,173,000
Obligations under notes payable	6,630,000
Aggregate maturities of obligations under capital leases
October 2018 - September 2019	2,805,000
October 2019 - September 2020	3,004,000
October 2020 - September 2021	24,000
Obligations under capital leases	$ 5,833,000
Notes payable to finance companies for insurance
Notes payable
Number of outstanding notes payable | item	1
Aggregate principal amount outstanding	$ 112,000
Interest rate (as a percent)	3.80%
Notes payable to commercial banks
Notes payable
Number of outstanding notes payable | instrument	1
Aggregate principal amount outstanding	$ 6,518,000
Interest rate (as a percent)	5.00%
Obligations under capital leases | Minimum
Notes payable
Interest rate (as a percent)	4.65%
Obligations under capital leases | Maximum
Notes payable
Interest rate (as a percent)	4.93%

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Amount of long-term and short-term debt maturing in the next twelve rolling months.

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The number of outstanding notes payable.

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Amount of minimum lease payments for capital leases.

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Amount of minimum lease payments for capital leases due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments for capital leases due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments for capital leases due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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