RELATED PARTY TRANSACTIONS	12 Months Ended
Oct. 29, 2017
RELATED PARTY TRANSACTIONS [Abstract]
RELATED PARTY TRANSACTIONS	NOTE 16 - RELATED PARTY TRANSACTIONS Our executive chairman of the board of directors is also a director of an entity that provided secure managed information technology services to Photronics in fiscal years 2016 and 2015. Another member of our board of directors was the chief executive officer and chairman of the board of this entity. We had contracted with this entity since 2002 for services it provided to all of our facilities. In fiscal years 2016 and 2015, we incurred expenses for services provided by this entity of $0.2 million and $1.0 million, respectively. An officer of one of our foreign subsidiaries is related to an individual in a position of authority at one of our largest customers. We recorded revenue from this customer of $73.6 million, $80.5 million, and $77.8 million in fiscal years 2017, 2016 and 2015, respectively. At October 29, 2017 and October 30, 2016, we had accounts receivable of $24.3 million and $23.2 million, respectively, from this customer. In July 2016, we entered into a contract for information technology services with a parent entity for which a member of our board of directors serves as the executive chairman of the board and director of a wholly owned subsidiary of that entity. During fiscal years 2017 and 2016, we incurred expenses of $0.5 million and $0.3 million, respectively with the parent entity, and had payables outstanding to the parent entity of $0.2 million at October 30, 2016. We purchase photomask blanks from an entity of which a former officer of ours is a significant shareholder. The Company purchased $4.5 million of photomask blanks from this entity during the period in 2017 when the former officer was employed by us, and $16.3 million and $20.2 million in 2016 and 2015, respectively, for which the amount owed to this entity was $2.7 million at October 30, 2016 (the last reported date at which this entity was a related party to Photronics). We believe that the terms of our transactions with the related parties described above were negotiated at arm’s length and were no less favorable to us than terms we could have obtained from unrelated third parties. See Note 4 for additional related party transactions.

NOTE 16 - RELATED PARTY TRANSACTIONS

Our executive chairman of the board of directors is also a director of an entity that provided secure managed information technology services to Photronics in fiscal years 2016 and 2015. Another member of our board of directors was the chief executive officer and chairman of the board of this entity. We had contracted with this entity since 2002 for services it provided to all of our facilities. In fiscal years 2016 and 2015, we incurred expenses for services provided by this entity of $0.2 million and $1.0 million, respectively.

An officer of one of our foreign subsidiaries is related to an individual in a position of authority at one of our largest customers. We recorded revenue from this customer of $73.6 million, $80.5 million, and $77.8 million in fiscal years 2017, 2016 and 2015, respectively. At October 29, 2017 and October 30, 2016, we had accounts receivable of $24.3 million and $23.2 million, respectively, from this customer.

In July 2016, we entered into a contract for information technology services with a parent entity for which a member of our board of directors serves as the executive chairman of the board and director of a wholly owned subsidiary of that entity. During fiscal years 2017 and 2016, we incurred expenses of $0.5 million and $0.3 million, respectively with the parent entity, and had payables outstanding to the parent entity of $0.2 million at October 30, 2016.

We purchase photomask blanks from an entity of which a former officer of ours is a significant shareholder. The Company purchased $4.5 million of photomask blanks from this entity during the period in 2017 when the former officer was employed by us, and $16.3 million and $20.2 million in 2016 and 2015, respectively, for which the amount owed to this entity was $2.7 million at October 30, 2016 (the last reported date at which this entity was a related party to Photronics).

We believe that the terms of our transactions with the related parties described above were negotiated at arm’s length and were no less favorable to us than terms we could have obtained from unrelated third parties. See Note 4 for additional related party transactions.