PDMCX JOINT VENTURE (Details) - USD ($) $ in Thousands	3 Months Ended
	Jan. 27, 2019	Jan. 28, 2018	Oct. 31, 2018
Variable Interest Entity [Abstract]
Operating (loss)	$ 0	$ 0
Initial term of agreement	2 years
Trigger period for option to purchase, or put, their interest from, or to, other party if ownership interest falls below 20%	6 months
Operating (loss)	$ (1,300)	$ (500)
Consolidation liabilities, recourse	0
Maximum exposure to loss	$ 44,900
Methodology use for determining whether enterprise is primary beneficiary	As required by the guidance in Topic 810 - “Consolidation” of the Accounting Standards Codification, we evaluated our involvement in PDMCX for the purpose of determining whether we should consolidate its results in our financial statements. The initial step of our evaluation was to determine whether PDMCX is a variable interest entity (“VIE”). Due to its lack of sufficient equity at risk to finance its activities without additional subordinated financial support, we determined that it is a VIE. Having made this determination, we then assessed whether we were the primary beneficiary of the VIE, and concluded that we are the primary beneficiary during the current and prior year reporting periods; thus, as required, the PDMCX financial results have been consolidated with Photronics, Inc. Our conclusion was based on the facts that we held a controlling financial interest in PDMCX (which resulted from our having the power to direct the activities that most significantly impacted its economic performance), had the obligation to absorb losses, and the right to receive benefits that could potentially be significant to PDMCX. Our conclusions that we had the power to direct the activities that most significantly affected the economic performance of PDMCX during the current and prior year reporting periods was based on our right to appoint the majority of its board of directors, which has, among others, the powers to manage the business (through its rights to appoint and evaluate PDMCX management), incur indebtedness, enter into agreements and commitments, and acquire and dispose of PDMCX’s assets. In addition, as a result of the 50.01% variable interest we held during the current and prior year periods, we had the obligation to absorb losses and the right to receive benefits that could potentially be significant to PDMCX.
Photronics Singapore Pte, Ltd [Member]
Variable Interest Entity [Abstract]
Ownership percentage	50.01%
DNP [Member]
Variable Interest Entity [Abstract]
Ownership percentage	49.99%
Minimum [Member]
Variable Interest Entity [Abstract]
Ownership percentage	20.00%
Number of business days for obtaining required approvals and clearance for exiting party	3 days
Carrying Amount [Member]
Carrying amounts of assets and liabilities along with exposure to loss related to assets and liabilities [Abstract]
Current assets	$ 56,957		$ 9,625
Non-current assets	91,963		43,415
Total assets	148,920		53,040
Current liabilities	34,544		21,205
Non-current liabilities	24,501		20
Total liabilities	59,045		21,225
Net assets	89,875		31,815
Photronics Interest [Member]
Carrying amounts of assets and liabilities along with exposure to loss related to assets and liabilities [Abstract]
Current assets	28,479		4,813
Non-current assets	45,982		21,708
Total assets	74,461		26,521
Current liabilities	17,272		10,603
Non-current liabilities	12,251		10
Total liabilities	29,523		10,613
Net assets	44,938		$ 15,908
Primary Beneficiary [Member]
Variable Interest Entity [Abstract]
Financial or other support, amount	48,000
Future support to be provided	32,000
Not Primary Beneficiary [Member]
Variable Interest Entity [Abstract]
Financial or other support, amount	48,000
Future support to be provided	$ 32,000