CREDIT FACILITIES - Summary of Borrowings (Details) - USD ($) $ in Thousands	6 Months Ended
Mar. 29, 2019	Sep. 30, 2018	Sep. 30, 2017
Total debt, gross	$ 27,206	$ 17,451
Long-term Debt, Gross	27,484	17,740
Unamortized Debt Issuance Expense	(278)	(289)
Less: current portion	(1,632)	(1,449)
Long-term debt	$ 25,574	$ 16,002
Revolving Credit Facility [Member]
Maturity Date	May 05, 2022
Term Loan B [Member]
Fixed/Variable Rate	Variable Interest Rate
Maturity Date	May 05, 2022
Interest Rate	4.99%		5.3637%
Equipment Line Advances [Member]
Fixed/Variable Rate	Variable Interest Rate
Interest Rate	5.00%	5.56%
Equipment Line Advances Term Note [Member]
Fixed/Variable Rate	Variable Interest Rate
Interest Rate	5.00%	5.56%
Equipment Line Advances Term Note [Member]
Total debt, gross	$ 969	$ 794
Equipment Line Advances [Member]
Total debt, gross	392	314
Term Loan B [Member]
Total debt, gross	$ 3,208	$ 3,636
Revolving Credit Facility [Member]
Fixed/Variable Rate	Variable Interest Rate
Maturity Date	May 05, 2022
Interest Rate	4.75%	5.2605%
Total debt, gross	$ 22,915	$ 12,996

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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