ACCOUNTS RECEIVABLE (Details) - USD ($) $ in Thousands	Jan. 01, 2021	Oct. 02, 2020	Dec. 27, 2019
Receivables [Abstract]
Allowances for doubtful accounts receivable	$ 2,823	$ 2,697	$ 3,062
Accounts receivable, net	$ 97,386	$ 67,292	$ 78,249

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Publisher FASB
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Name:	us-gaap_AccountsReceivableNetCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant