Income Taxes (Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Feb. 28, 2015	Mar. 01, 2014
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits at beginning of year	$ 2,487	$ 2,155
Additions for current period tax positions	175	79
Changes in interest and penalties	19	33
Unrecognized tax benefits at end of period	$ 2,681	$ 2,267