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COMMITMENTS, CONTINGENCIES AND CONCENTRATIONS (Tables) | 6 Months Ended
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Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract] |
Reserve for product warranty activity | The following table reflects the reserve for warranty activity for the three and six months ended March 31, 2018 and April 1, 2017 has been adjusted for the restatement described in Note 2, "Restatement of Consolidated Financial Statements":
| Three months ended |  | Six months ended
(in thousands) | March 31, 2018 |  |  | April 1, 2017 As Restated |  | March 31, 2018 |  | April 1, 2017 As Restated
Reserve for warranty, beginning of period (As Restated) | $ | 13,692 |  |  | $ | 12,832 |  |  | $ | 13,796 |  |  | $ | 12,544 |
Provision for warranty | 3,220 |  |  | 3,127 |  |  | 6,180 |  |  | 5,728 |
Utilization of reserve | (2,715 | ) |  | (2,670 | ) |  | (5,779 | ) |  | (4,983 | )
Reserve for warranty, end of period | $ | 14,197 |  |  | $ | 13,289 |  |  | $ | 14,197 |  |  | $ | 13,289 |
Obligations not reflected on the Consolidated Balance Sheet | The following table reflects obligations not reflected on the Consolidated Condensed Balance Sheet as of March 31, 2018:
|  |  |  | Payments due by fiscal year
(in thousands) | Total |  | 2018 |  | 2019 |  | 2020 |  | 2021 |  | thereafter
Inventory purchase obligation (1) | $ | 180,447 |  |  | $ | 180,447 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Operating lease obligations (2) | 18,601 |  |  | 1,737 |  |  | 3,178 |  |  | 2,839 |  |  | 1,930 |  |  | 8,917 |
Total | $ | 199,048 |  |  | $ | 182,184 |  |  | $ | 3,178 |  |  | $ | 2,839 |  |  | $ | 1,930 |  |  | $ | 8,917 |
(1) | The Company orders inventory components in the normal course of its business. A portion of these orders are non-cancellable, however, some orders impose varying penalties and charges in the event of cancellation.
(2) | The Company has minimum rental commitments under various leases (excluding taxes, insurance, maintenance and repairs, which are also paid by the Company) primarily for various facility and equipment leases, which expire periodically through 2023 (not including lease extension options, if applicable).
Pursuant to ASC No. 840, Leases, for lessee's involvement in asset construction, the Company was considered the owner of the Building during the construction phase. The Building was completed on December 1, 2013 and Pte signed an agreement with the Landlord to lease from the Landlord approximately 198,000 square feet, representing approximately 70% of the Building. Following the completion of construction, we performed a sale-leaseback analysis pursuant to ASC 840-40 and determined that because of our continuing involvement, ASC 840-40 precluded us from derecognizing the asset and associated financing obligation. As such, we reclassified the asset from construction in progress to property, plant and equipment and began to depreciate the building over its estimated useful life of 25 years. We concluded that the term of the financing obligation is 10 years. This is equal to the non-cancellable term of our lease agreement with the Landlord. As of March 31, 2018, we recorded a financing obligation related to the Building of $17.0 million (see Note 11 above). The financing obligation is not reflected in the table above.
Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block] | There is no significant customer that represents 10% or more of our net revenue for the six months ended March 31, 2018 and April 1, 2017.
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 March 31, 2018 and April 1, 2017:
| As of
| March 31, 2018 |  | April 1, 2017
Super Power International Ltd (1) | 17.9 | % |  | 10.6 | %
Siliconware Precision Industries Ltd. | 14.5 | % |  | * |
Haoseng Industrial Company Limited (1) | 10.8 | % |  | 11.8 | %
(1) Distributor of the Company's products. * Represented less than 10% of total accounts receivable

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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249 + Details
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- Definition Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer. + References No definition available. + Details
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