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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Product Warranties (Details) | 12 Months Ended
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Oct. 31, 2021
Minimum [Member] |
Product Warranty [Abstract] |
Product warranty period | 1 month
Maximum [Member] |
Product Warranty [Abstract] |
Product warranty period | 24 months

X
- Definition Represents the period of warranty coverage of products sold, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | plab_PeriodOfWarranty
Namespace Prefix: | plab_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | plab_ProductWarrantyAbstract
Namespace Prefix: | plab_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |