PDMCX JOINT VENTURE (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Apr. 29, 2018 USD ($)	Apr. 29, 2018 USD ($)
Variable Interest Entity [Line Items]
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	$ (200)	$ (700)
Initial consolidation, gain (loss)		0
Maximum loss exposure, amount	11,400	$ 11,400
Methodology use for determining whether enterprise is primary beneficiary		As required by the guidance in Topic 810 - “Consolidation” of the Accounting Codification Standards, 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 was 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 was a VIE. Having made this determination, we then assessed whether we were the primary beneficiary of the VIE, and concluded that we were the primary beneficiary during the current reporting period; thus, as required, the PDMCX financial results should be consolidated with Photronics, Inc. Our conclusion was based on the fact 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, the obligation to absorb losses, and the right to receive benefits that could potentially be significant to PDMCX. Our conclusion that we had the power to direct the activities that most significantly affected the economic performance of PDMCX during the current period 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’s 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 period, we had the obligation to absorb losses and the right to receive benefits that could potentially be significant to PDMCX.
Consolidation liabilities, recourse	0	$ 0
DNP [Member]
Variable Interest Entity [Line Items]
Ownership percentage		49.99%
Photronics Singapore Pte, Ltd [Member]
Variable Interest Entity [Line Items]
Ownership percentage		50.01%
Minimum [Member]
Variable Interest Entity [Line Items]
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	11,226	$ 11,226
Non-current assets	15,635	15,635
Total assets	26,861	26,861
Current liabilities	4,000	4,000
Non-current liabilities	16	16
Total liabilities	4,016	4,016
Net assets	22,845	22,845
Photronics Interest [Member]
Carrying amounts of assets and liabilities along with exposure to loss related to assets and liabilities [Abstract]
Current assets	5,614	5,614
Non-current assets	7,819	7,819
Total assets	13,433	13,433
Current liabilities	2,000	2,000
Non-current liabilities	8	8
Total liabilities	2,008	2,008
Net assets	$ 11,425	11,425
Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Financial or other support, amount		12,000
Future support to be provided		43,000
Not Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Financial or other support, amount		12,000
Future support to be provided		$ 43,000