Stockholders' Equity (Details 4) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
	Jun. 01, 2013
Vested Options
Griffin Stock Option Plan
Outstanding at ending of the year (in shares)	107,818
Weighted Avg. Exercise Price (in dollars per share)	$ 31.86
Weighted Avg. Remaining Contractual Life	5 years 3 months 18 days
Total Intrinsic Value	$ 65
Nonvested Options
Griffin Stock Option Plan
Outstanding at ending of the year (in shares)	137,359
Weighted Avg. Exercise Price (in dollars per share)	$ 29.20
Weighted Avg. Remaining Contractual Life	7 years 7 months 6 days
Total Intrinsic Value	146
$23.00-$32.00 | Vested Options
Griffin Stock Option Plan
Exercise prices, low end of range (in dollars per share)	$ 23.00
Exercise prices, high end of range (in dollars per share)	$ 32.00
Outstanding at ending of the year (in shares)	34,742
Weighted Avg. Exercise Price (in dollars per share)	$ 28.24
Weighted Avg. Remaining Contractual Life	4 years 9 months 18 days
Total Intrinsic Value	65
$32.00-$39.00 | Vested Options
Griffin Stock Option Plan
Exercise prices, low end of range (in dollars per share)	$ 32.00
Exercise prices, high end of range (in dollars per share)	$ 39.00
Outstanding at ending of the year (in shares)	73,076
Weighted Avg. Exercise Price (in dollars per share)	$ 33.58
Weighted Avg. Remaining Contractual Life	5 years 7 months 6 days
$23.00-$30.00 | Nonvested Options
Griffin Stock Option Plan
Exercise prices, low end of range (in dollars per share)	$ 23.00
Exercise prices, high end of range (in dollars per share)	$ 30.00
Outstanding at ending of the year (in shares)	117,360
Weighted Avg. Exercise Price (in dollars per share)	$ 28.53
Weighted Avg. Remaining Contractual Life	7 years 10 months 24 days
Total Intrinsic Value	$ 146
$33.00-$35.00 | Nonvested Options
Griffin Stock Option Plan
Exercise prices, low end of range (in dollars per share)	$ 33.00
Exercise prices, high end of range (in dollars per share)	$ 35.00
Outstanding at ending of the year (in shares)	19,999
Weighted Avg. Exercise Price (in dollars per share)	$ 33.07
Weighted Avg. Remaining Contractual Life	5 years 7 months 6 days