EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Jan. 31, 2021	Feb. 02, 2020
Calculation of basic and diluted earnings per share [Abstract]
Net income attributable to Photronics, Inc. shareholders	$ 8,036	$ 10,300
Effect of dilutive securities	0	0
Earnings used for diluted earnings per share	$ 8,036	$ 10,300
Weighted-average common shares computations [Abstract]
Weighted-average common shares used for basic earnings per share (in shares)	62,475	65,554
Effect of dilutive securities [Abstract]
Share-based payment awards (in shares)	530	895
Potentially dilutive common shares (in shares)	530	895
Weighted-average common shares used for diluted earnings per share (in shares)	63,005	66,449
Basic earnings per share (in dollars per share)	$ 0.13	$ 0.16
Diluted earnings per share (in dollars per share)	$ 0.13	$ 0.16
Antidilutive Securities [Abstract]
Total potentially dilutive shares excluded (in shares)	826	173
Share-based Payment Awards [Member]
Antidilutive Securities [Abstract]
Total potentially dilutive shares excluded (in shares)	826	173