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Estimated Fair Values of Assets Acquired and Liabilities Assumed for Drake Acquisition (Details) (USD $)
In Thousands, unless otherwise specified
Oct. 31, 2012
Dec. 02, 2011
Drake
Dec. 02, 2011
Drake
as initially reported
Dec. 02, 2011
Drake
Measurement Period Adjustments
Business Acquisition [Line Items]        
Cash   $ 427 $ 427 $ 0
Current assets 4,011 4,032 4,245 (213)
Deferred tax asset   446 390 56
Property, plant and equipment 268 1,773 1,773 0
Goodwill 18,931 15,711 15,237 474
Other intangibles 5,620 5,810 5,810 0
Other assets   9 9 0
Current liabilities 1,836 (3,280) (3,334) 54
Long-term deferred tax liability   (2,363) (2,395) 32
Net assets acquired and liabilities assumed $ 27,134 $ 22,565 $ 22,162 $ 403