Condensed Consolidated Statements of Income (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Jan. 27, 2019	Jan. 28, 2018
Condensed Consolidated Statements of Income (unaudited) [Abstract]
Revenue	$ 124,712	$ 123,446
Cost of goods sold	98,610	95,784
Gross profit	26,102	27,662
Operating expenses:
Selling, general and administrative	13,792	11,750
Research and development	4,263	4,104
Total operating expenses	18,055	15,854
Operating income	8,047	11,808
Other income (expense):
Interest income and other income (expense), net	1,639	(3,531)
Interest expense	(531)	(574)
Income before income taxes	9,155	7,703
Income tax (provision) benefit	(1,387)	1,778
Net income	7,768	9,481
Net income attributable to noncontrolling interests	2,501	3,583
Net income attributable to Photronics, Inc. shareholders	$ 5,267	$ 5,898
Earnings per share:
Basic (in dollars per share)	$ 0.08	$ 0.09
Diluted (in dollars per share)	$ 0.08	$ 0.09
Weighted-average number of common shares outstanding:
Basic (in shares)	66,583	68,755
Diluted (in shares)	67,047	69,372