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Condensed Consolidated Statements of Income (unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Jul. 31, 2011	Aug. 01, 2010	Jul. 31, 2011	Aug. 01, 2010
Condensed Consolidated Statements of Income (unaudited) [Abstract]
Net sales	$ 135,935	$ 112,251	$ 389,861	$ 315,518
Costs and expenses:
Cost of sales	(97,695)	(85,979)	(284,540)	(248,979)
Selling, general and administrative	(11,833)	(11,068)	(33,995)	(32,086)
Research and development	(3,527)	(3,427)	(11,238)	(10,983)
Consolidation, restructuring and related (charges) credits	0	(26)	0	4,810
Operating income	22,880	11,751	60,088	28,280
Other income (expense):
Debt extinguishment loss	(4,973)	0	(35,259)	0
Interest expense	(1,907)	(1,827)	(5,499)	(7,807)
Investment and other income (expense), net	1,517	593	3,480	1,937
Income before income taxes	17,517	10,517	22,810	22,410
Income tax provision	(4,895)	(2,910)	(11,637)	(5,790)
Net income	12,622	7,607	11,173	16,620
Net (income) loss attributable to noncontrolling interests	(1,357)	84	(4,235)	(842)
Net income attributable to Photronics, Inc.	$ 11,265	$ 7,691	$ 6,938	$ 15,778
Earnings per share:
Basic	$ 0.19	$ 0.14	$ 0.12	$ 0.30
Diluted	$ 0.16	$ 0.13	$ 0.12	$ 0.29
Weighted average number of common shares outstanding:
Basic	58,987	53,516	56,163	53,341
Diluted	76,744	66,280	57,724	65,689

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