Restructuring (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Aug. 27, 2016 |
Aug. 29, 2015 |
Aug. 27, 2016 |
Aug. 29, 2015 |
|
| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring charges | $ (104,000) | $ 0 | $ 280,000 | $ 0 |
| Cost of Sales [Member] | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring charges | (384,000) | 2,037,000 | ||
| Selling, General and Administrative Expenses [Member] | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring charges | 2,181,000 | (144,000) | ||
| Accrued Liabilities [Member] | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring reserve | $ 922,000 | $ 922,000 | ||