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COMMITMENTS, CONTINGENCIES AND CONCENTRATIONS (Tables)
12 Months Ended
Oct. 03, 2020
Commitments and Contingencies Disclosure [Abstract]  
Reserve for product warranty activity
The following table reflects the reserve for product warranty activity for fiscal 2020, 2019, and 2018: 
 Fiscal
(in thousands)202020192018
Reserve for warranty, beginning of period$14,185 $14,474 $13,796 
Provision for warranty14,004 12,140 12,603 
Changes in the estimation of warranty reserve(5,417)— — 
Utilization of reserve(13,196)(12,429)(11,925)
Reserve for warranty, end of period$9,576 $14,185 $14,474 
Obligations not reflected on the Consolidated Balance Sheet
The following table reflects obligations not reflected on the Consolidated Balance Sheet as of October 3, 2020:
  Payments due by fiscal year
(in thousands)Total2020202120222023Thereafter
Inventory purchase obligation (1)
$152,832 $152,832 $— $— $— $— 
(1)The Company orders inventory components in the normal course of its business. A portion of these orders are non-cancelable and a portion may have varying penalties and charges in the event of cancellation.
Significant customer concentrations as a percentage of net revenue
The following tables reflect significant customer concentrations as a percentage of net revenue for fiscal 2020, 2019, and 2018:
 Fiscal
 202020192018
Haoseng Industrial Co., Ltd (1)
**12.8 %
* Represents less than 10% of total net revenue
(1) Distributor of the Company's products
Significant customer concentrations as a percentage of total accounts receivable
The following table reflects significant customer concentrations as a percentage of total accounts receivable as of October 3, 2020 and September 28, 2019:
 As of
 October 3, 2020September 28, 2019
Forehope Electronic Co., Ltd20.0 %15.3 %
Regent Manner Limited10.3 %*
Xinye Electronics Co. (1)
*16.0 %
Super Power International Ltd. (1)
*13.5 %
 * Represents less than 10% of total accounts receivable
(1) Distributor of the Company's products