EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	May 03, 2020	Apr. 28, 2019	May 03, 2020	Apr. 28, 2019
Calculation of basic and diluted earnings per share [Abstract]
Net income attributable to Photronics, Inc. shareholders	$ 6,284	$ 8,479	$ 16,584	$ 13,746
Effect of dilutive securities [Abstract]
Interest expense on convertible notes, net of tax	0	349	0	845
Earnings used for diluted earnings per share	$ 6,284	$ 8,828	$ 16,584	$ 14,591
Weighted-average common shares computations [Abstract]
Weighted-average common shares used for basic earnings per share (in shares)	64,937	66,261	65,246	66,422
Effect of dilutive securities [Abstract]
Share-based payment awards (in shares)	480	438	687	451
Convertible notes (in shares)	0	3,898	0	4,720
Potentially dilutive common shares (in shares)	480	4,336	687	5,171
Weighted-average common shares used for diluted earnings per share (in shares)	65,417	70,597	65,933	71,593
Basic earnings per share (in dollars per share)	$ 0.10	$ 0.13	$ 0.25	$ 0.21
Diluted earnings per share (in dollars per share)	$ 0.10	$ 0.13	$ 0.25	$ 0.20
Antidilutive Securities [Abstract]
Total potentially dilutive shares excluded (in shares)	1,009	1,204	591	1,134
Share-based Payment Awards [Member]
Antidilutive Securities [Abstract]
Total potentially dilutive shares excluded (in shares)	1,009	1,204	591	1,134