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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parentheticals) - USD ($) $ in Thousands | 12 Months Ended
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Jul. 27, 2019 | Jul. 28, 2018
Statement of Comprehensive Income [Abstract] |  |
Tax of amortization of pension actuarial loss | $ 182 | $ 160
Tax (expense) benefit of pension adjustment to funded status | 384 | 86
Tax on pension settlement loss | $ 133 | $ 242

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