Condensed Consolidated Statements of Income (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 02, 2020	Jul. 28, 2019	Aug. 02, 2020	Jul. 28, 2019
Condensed Consolidated Statements of Income (unaudited) [Abstract]
Revenue	$ 157,895	$ 138,112	$ 460,405	$ 394,404
Cost of goods sold	120,161	107,542	357,636	311,721
Gross profit	37,734	30,570	102,769	82,683
Operating expenses:
Selling, general and administrative	13,306	13,124	40,792	40,186
Research and development	4,492	4,046	13,034	11,852
Total operating expenses	17,798	17,170	53,826	52,038
Operating income	19,936	13,400	48,943	30,645
Other income (expense):
Foreign currency transaction (losses) gains, net	(1,565)	(76)	1,739	4,976
Interest expense, net	(586)	(377)	(1,609)	(1,263)
Interest income and other income (expense), net	16	105	480	979
Income before income taxes	17,801	13,052	49,553	35,337
Income tax provision	4,937	3,218	17,789	7,883
Net income	12,864	9,834	31,764	27,454
Net income attributable to noncontrolling interests	2,088	3,487	4,404	7,361
Net income attributable to Photronics, Inc. shareholders	$ 10,776	$ 6,347	$ 27,360	$ 20,093
Earnings per share:
Basic (in dollars per share)	$ 0.17	$ 0.10	$ 0.42	$ 0.30
Diluted (in dollars per share)	$ 0.17	$ 0.10	$ 0.42	$ 0.30
Weighted-average number of common shares outstanding:
Basic (in shares)	64,780	66,313	65,090	66,386
Diluted (in shares)	65,247	66,570	65,704	69,919