CREDIT FACILITIES - Summary of Borrowings (Details) - USD ($) $ in Thousands	9 Months Ended
Jun. 26, 2020	Sep. 30, 2019
Total debt, gross	$ 25,373	$ 30,281
Long-term Debt, Gross	25,664	30,550
Unamortized Debt Issuance Expense	(291)	(269)
Less: current portion	0	(1,371)
Long-term debt	$ 25,373	$ 28,910
Revolving Credit Facility [Member]
Maturity Date	Jun. 04, 2023
Term Loan B [Member]
Fixed/Variable Rate	Variable Interest Rate
Maturity Date	May 05, 2022
Interest Rate	0.00%	4.59%
Equipment Line Advances [Member]
Fixed/Variable Rate	Variable Interest Rate
Equipment Line Advances Term Note [Member]
Fixed/Variable Rate	Variable Interest Rate
Interest Rate	0.00%	4.56%
Equipment Line Advances Term Note [Member]
Total debt, gross	$ 0	$ 1,125
Term Loan B [Member]
Total debt, gross	$ 0	$ 2,779
Revolving Credit Facility [Member]
Fixed/Variable Rate	Variable Interest Rate
Maturity Date	May 05, 2022
Interest Rate	1.94%	4.31%
Total debt, gross	$ 25,664	$ 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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