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Segment Information - Capital Expenditures and Depreciation Expense By Operating Segments (Detail) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Nov. 02, 2014
Oct. 27, 2013
Segment Reporting Information [Line Items]    
Capital expenditures $ 4,988 [1] $ 1,740 [1]
Depreciation expense 2,812 2,636
Operating Segments [Member] | Mattress Fabrics [Member]
   
Segment Reporting Information [Line Items]    
Capital expenditures 4,692 1,199
Depreciation expense 2,448 2,331
Operating Segments [Member] | Upholstery Fabrics [Member]
   
Segment Reporting Information [Line Items]    
Capital expenditures 258 521
Depreciation expense 364 305
Unallocated corporate [Member]
   
Segment Reporting Information [Line Items]    
Capital expenditures $ 38 $ 20
[1] Capital expenditure amounts are stated on the accrual basis. See Consolidated Statements of Cash Flows for capital expenditure amounts on a cash basis.