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Estimated Fair Values of Assets Acquired and Liabilities Assumed for Auto-Bake Acquisition (Details) (USD $)
In Thousands, unless otherwise specified
Oct. 31, 2012
Aug. 01, 2011
Auto-Bake
Aug. 01, 2011
Auto-Bake
as initially reported
Aug. 01, 2011
Auto-Bake
Measurement Period Adjustments
Business Acquisition [Line Items]        
Cash   $ 110 $ 110 $ 0
Current assets 4,011 3,256 3,209 47
Property, plant and equipment 268 477 477 0
Goodwill 18,931 18,124 16,259 1,865
Other intangibles 5,620 4,058 6,784 (2,726)
Other assets   325 336 (11)
Current liabilities 1,836 (2,498) (2,506) 8
Long-term deferred tax liability   (1,218) (2,035) 817
Net assets acquired and liabilities assumed $ 27,134 $ 22,634 $ 22,634 $ 0