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Segment Information - Capital Expenditures and Depreciation Expense By Operating Segments (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Aug. 03, 2014
Jul. 28, 2013
Segment Reporting Information [Line Items]    
Capital expenditures $ 2,260 [1] $ 658 [1]
Depreciation expense 1,399 1,305
Operating Segments [Member] | Mattress Fabrics [Member]
   
Segment Reporting Information [Line Items]    
Capital expenditures 2,129 263
Depreciation expense 1,219 1,149
Operating Segments [Member] | Upholstery Fabrics [Member]
   
Segment Reporting Information [Line Items]    
Capital expenditures 112 390
Depreciation expense 180 156
Unallocated corporate [Member]
   
Segment Reporting Information [Line Items]    
Capital expenditures $ 19 $ 5
[1] Capital expenditure amounts are stated on the accrual basis. See Consolidated Statements of Cash Flows for capital expenditure amounts on a cash basis.