XML 54 R37.htm IDEA: XBRL DOCUMENT
v3.7.0.1

BASIS OF FINANCIAL STATEMENT PRESENTATION (Details) | 6 Months Ended
--- | ---
Apr. 30, 2017 Facility
Manufacturing Facilities By Geographical Region [Line Items] |
Number of manufacturing facilities | 9
Europe [Member] |
Manufacturing Facilities By Geographical Region [Line Items] |
Number of manufacturing facilities | 2
Taiwan [Member] |
Manufacturing Facilities By Geographical Region [Line Items] |
Number of manufacturing facilities | 3
Korea [Member] |
Manufacturing Facilities By Geographical Region [Line Items] |
Number of manufacturing facilities | 1
United States [Member] |
Manufacturing Facilities By Geographical Region [Line Items] |
Number of manufacturing facilities | 3

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | plab_ManufacturingFacilitiesByGeographicalRegionLineItems
Namespace Prefix: | plab_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This line item represents the number of manufacturing facilities of the entity. + References No definition available. + Details
Name: | plab_NumberOfManufacturingFacilities
Namespace Prefix: | plab_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementGeographicalAxis=us-gaap_EuropeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_TW
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_KR
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |