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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Sep. 24, 2011	Dec. 25, 2010
Accounts receivable, allowance	$ 609,000	$ 737,000
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, authorized	3,000	3,000
Preferred stock, issued	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized	120,000,000	120,000,000
Common stock, issued	76,491,102	74,604,446
Common stock, outstanding	64,134,066	64,775,234
Treasury stock, shares	8,502,667	7,795,605

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