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COMMITMENTS, CONTINGENCIES AND CONCENTRATIONS (Significant customer concentrations as a percentage of total accounts receivable) (Details) - Accounts Receivable - Customer Concentration Risk | 6 Months Ended
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Apr. 02, 2022 | Apr. 03, 2021
Haoseng Industrial Co., Ltd. (1) |  |
Concentration Risk [Line Items] |  |
Customer concentrations risk percentage | 12.40% | 16.40%
Huatian TechnologyGroup [Member] |  |
Concentration Risk [Line Items] |  |
Customer concentrations risk percentage | 23.50% | 13.80%

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