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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Product Warranties (Details)	12 Months Ended
	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: