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Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2011 | Jan. 01, 2011 | Jan. 02, 2010
Other comprehensive (loss)/income |  |  |
Change in fair value of derivative financial instruments, tax | $ 0 | $ 0 | $ (72,200)
Reclassification adjustment for termination of derivative financial instrument, tax | 0 | 0 | 340,991
Change in pension and postretirement benefit costs, taxes | $ 2,507,762 | $ 227,018 | $ (1,341,658)

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