CREDIT FACILITIES - Schedule of Debt (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2020	Sep. 30, 2019
Long-term Debt, Gross	$ 21,742	$ 30,550
Unamortized debt issuance costs	(266)	(269)
Total debt, net	21,476	30,281
Less: current portion	0	(1,371)
Long-term debt	$ 21,476	$ 28,910
Term Loan B
Date	May 05, 2022
Interest Rate	0.00%	4.59%
Long-term Debt, Gross	$ 0	$ 2,779
Equipment Line Advances Term Note [Member]
Interest Rate	0.00%	4.56%
Total debt, net		$ 1,125
Master Lease
Date	Jun. 04, 2023
Interest Rate	3.00%
Long-term Debt, Gross	$ 1,782
Revolving Credit Facility
Date	Jun. 04, 2023
Interest Rate	2.75%	4.31%
Long-term Debt, Gross	$ 19,960	$ 26,646

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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