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EARNINGS PER SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011
Numerator:
Net income	$ 17,349	$ 10,737	$ 50,842	$ 29,496
Denominator:
Weighted average number of common shares outstanding - Basic	19,160,072	18,978,755	19,143,988	18,875,788
Dilutive effect of options and restricted stock units outstanding under the Company?s employee compensation plans	599,480	317,425	561,105	141,944
Weighted average number of common shares outstanding - Diluted	19,759,552	19,296,180	19,705,093	19,017,732

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