No definition available.

Name:	plab_ProjectLoansAbstract
Namespace Prefix:	plab_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the aggregate of total long-term debt, including current maturities and short-term debt.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtLongtermAndShorttermCombinedAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585

+ Details

Name:	us-gaap_RepaymentsOfLongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=plab_ProjectLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

DEBT, Xiamen Project Loans (Details) $ in Thousands, ¥ in Millions	1 Months Ended		3 Months Ended		12 Months Ended
	Feb. 28, 2023 USD ($)	Feb. 28, 2023 CNY (¥)	Apr. 30, 2023 USD ($)	Apr. 30, 2023 CNY (¥)	Oct. 31, 2022 USD ($)	Oct. 31, 2022 CNY (¥)	Nov. 30, 2018 CNY (¥)
Project Loans [Abstract]
Amount outstanding			$ 28,339
Xiamen Project Loans [Member]
Project Loans [Abstract]
Maximum borrowing capacity \| ¥							¥ 345.0
Amount outstanding			0
Repayments of Long-Term Debt	$ 3,900	¥ 26.4	$ 3,900	¥ 26.4	$ 11,500	¥ 81.0