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Segment Information - Capital Expenditures and Depreciation Expense By Operating Segments (Detail) - USD ($)
$ in Thousands
9 Months Ended
Jan. 31, 2016
Feb. 01, 2015
Segment Reporting Information [Line Items]    
Capital expenditures [1] $ 7,077 $ 8,684
Depreciation expense 4,888 4,244
Operating Segments [Member] | Mattress Fabrics [Member]    
Segment Reporting Information [Line Items]    
Capital expenditures 6,215 8,232
Depreciation expense 4,273 3,692
Operating Segments [Member] | Upholstery Fabrics [Member]    
Segment Reporting Information [Line Items]    
Capital expenditures 481 390
Depreciation expense 615 552
Unallocated corporate [Member]    
Segment Reporting Information [Line Items]    
Capital expenditures $ 381 $ 62
[1] Capital expenditure amounts are stated on the accrual basis. See Consolidated Statements of Cash Flows for capital expenditure amounts on a cash basis.