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Segment Information - Balance Sheet Information by Operating Segments (Parenthetical) (Detail) (USD $)
In Thousands, unless otherwise specified
Nov. 02, 2014
Apr. 27, 2014
Oct. 27, 2013
Segment Reporting Information [Line Items]      
Property, plant and equipment $ 33,204 $ 31,376 [1] $ 30,559
United States [Member] | Mattress Fabrics [Member]
      
Segment Reporting Information [Line Items]      
Property, plant and equipment 22,200 20,600 20,500
United States [Member] | Upholstery Fabrics [Member]
      
Segment Reporting Information [Line Items]      
Property, plant and equipment 977 957 1,100
Canada [Member] | Mattress Fabrics [Member]
      
Segment Reporting Information [Line Items]      
Property, plant and equipment 8,700 8,400 7,800
China [Member] | Upholstery Fabrics [Member]
      
Segment Reporting Information [Line Items]      
Property, plant and equipment 601 572 464
Poland [Member] | Upholstery Fabrics [Member]
      
Segment Reporting Information [Line Items]      
Property, plant and equipment   44 49
Unallocated corporate [Member]
      
Segment Reporting Information [Line Items]      
Property, plant and equipment 688 [2] 763 [2] 640 [2]
Unallocated corporate [Member] | United States [Member]
      
Segment Reporting Information [Line Items]      
Property, plant and equipment $ 688 $ 763 $ 640
[1] Derived from audited financial statements.
[2] The $688, $640, and $763 at November 2, 2014, October 27, 2013 and April 27, 2014, respectively, represent property, plant, and equipment associated with unallocated corporate departments and corporate departments shared by both the mattress and upholstery fabric segments. Property, plant, and equipment associated with corporate are located in the U.S.