Segment Information - Balance Sheet Information by Operating Segments (Parenthetical) (Detail) - USD ($)
$ in Thousands
Jan. 29, 2017
May 01, 2016
Jan. 31, 2016
Segment Reporting Information [Line Items]      
Property, plant and equipment $ 50,333 $ 39,973 [1] $ 38,157
United States [Member] | Mattress Fabrics [Member]      
Segment Reporting Information [Line Items]      
Property, plant and equipment 32,600 24,800 23,000
United States [Member] | Upholstery Fabrics [Member]      
Segment Reporting Information [Line Items]      
Property, plant and equipment 1,100 893 860
Canada [Member] | Mattress Fabrics [Member]      
Segment Reporting Information [Line Items]      
Property, plant and equipment 15,200 12,700 12,600
China [Member] | Upholstery Fabrics [Member]      
Segment Reporting Information [Line Items]      
Property, plant and equipment 711 671 730
Unallocated corporate [Member]      
Segment Reporting Information [Line Items]      
Property, plant and equipment [2] $ 752 $ 929 $ 930
[1] Derived from audited financial statements.
[2] The $752, $930, and $929 at January 29, 2017, January 31, 2016 and May 1, 2016, 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.