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Segment Information - Balance Sheet Information by Operating Segments (Parenthetical) (Detail) - USD ($)
$ in Thousands
Apr. 30, 2017
Jan. 29, 2017
Oct. 30, 2016
Jul. 31, 2016
May 01, 2016
Jan. 31, 2016
Nov. 01, 2015
Aug. 02, 2015
May 03, 2015
Segment Reporting Information [Line Items]                  
property, plant and equipment $ 51,651 $ 50,333 $ 45,537 $ 41,745 $ 39,973 $ 38,157 $ 38,319 $ 37,480  
United States [Member] | Mattress Fabrics [Member]                  
Segment Reporting Information [Line Items]                  
property, plant and equipment 34,000       24,800       $ 23,800
United States [Member] | Upholstery Fabrics [Member]                  
Segment Reporting Information [Line Items]                  
property, plant and equipment 1,200       893       848
Canada [Member] | Mattress Fabrics [Member]                  
Segment Reporting Information [Line Items]                  
property, plant and equipment 14,900       12,700       10,000
China [Member] | Upholstery Fabrics [Member]                  
Segment Reporting Information [Line Items]                  
property, plant and equipment 655       671       619
Unallocated corporate [Member]                  
Segment Reporting Information [Line Items]                  
property, plant and equipment [1] $ 856       $ 929       $ 838
[1] The $856, $929, and $838 balance at April 30, 2017, May 1, 2016, and May 3, 2015, represent property, plant, and equipment associated with unallocated corporate departments and corporate departments shared by both the mattress and upholstery fabric segments.