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Stock-Based Compensation (Tables)
9 Months Ended
Sep. 29, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Disclosure of share-based compensation arrangements by share-based payment award [Table Text Block]
Stock-based compensation expense under all share-based payment plans -- our Employee Stock Purchase Plan, stock option plans, stock appreciation rights and performance-based restricted stock units -- included in the results of operations follows:
 
 
Three Months Ended
 
Nine Months Ended
 
September 29,
2012
 
October 1,
2011
 
September 29,
2012
 
October 1,
2011
Compensation expense, all share-based payment plans
$
285

 
$
282

 
$
1,210

 
$
986

Schedule of share-based compensation, stock-settled stock appreciation rights award activity [Table Text Block]
The following table summarizes our SSARs as of September 29, 2012.
Stock-Settled
Stock Appreciation Rights
 
Number of
Rights
 
Weighted-
Average
Award Date
Value
 
Weighted-
Average
Remaining
Contractual
Life
 
Unrecognized
Compensation
Cost
 
Aggregate
Intrinsic
Value
Unvested, January 1, 2012
 
210,188

 
$
3.47

 
 
 
 
 
 
Granted
 
105,000

 
2.70

 
 
 
 
 
 
Forfeited
 

 

 
 
 
 
 
 
Vested
 
(57,371
)
 
3.43

 
 
 
 
 
 
Unvested, September 29, 2012
 
257,817

 
$
3.17

 
3.2 years
 
$
636

 
$
5,363

 
 
 
 
 
 
 
 
 
 
 
Employee SSARs
 
218,400

 
$
3.31

 
3.2 years
 
$
552

 
$
4,543

Nonemployee Director SSARs
 
39,417

 
$
2.34

 
3.7 years
 
$
84

 
$
820

Schedule of share-based compensation, performance-based restricted stock units award activity [Table Text Block]
The following table summarizes Performance-Based Restricted Stock Units as of September 29, 2012.
Performance-Based
Restricted Stock Units
 
Number of
Stock Units
 
Weighted-
Average
Grant Date
Value
 
Weighted-
Average
Remaining
Contractual
Life
 
Unrecognized
Compensation
Cost
 
Aggregate
Intrinsic
Value
Unvested, January 1, 2012
 
113,908

 
$
15.15

 
 
 
 
 
 
Granted
 
23,058

 
19.41

 
 
 
 
 
 
Forfeited
 

 

 
 
 
 
 
 
Vested
 
(58,313
)
 
14.52

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Unvested, September 29, 2012
 
78,653

 
$
16.87

 
2.9 years
 
$
711

 
$
1,636

Schedule of share-based payment award, stock options, valuation assumptions [Table Text Block]
The fair values of stock-based awards granted were estimated at the dates of grant with the following weighted-average assumption.
 
 
Nine Months Ended
 
September 29,
2012
 
October 1,
2011
Volatility rate
11.7
%
 
11.9
%
Risk-free interest rate
1.6
%
 
2.9
%
Expected dividend yield
1.5
%
 
1.5
%
Expected life of awards (years)
9.1

 
8.9

Schedule of share-based compensation, stock options activity [Table Text Block]
The following table summarizes activity under the stock option plans for the nine months ended September 29, 2012.
Stock Options
 
Number of
Options
Outstanding
 
Weighted-
Average
Exercise
Price
 
Weighted-
Average
Remaining
Contractual
Life
 
Unrecognized
Compensation
Cost
 
Aggregate
Intrinsic
Value
Outstanding, January 1, 2012
 
1,110,785

 
$
10.62

 
 
 
 
 
 
Granted
 

 

 
 
 
 
 
 
Exercised
 
(121,385
)
 
8.02

 
 
 
 
 
 
Forfeited
 

 

 
 
 
 
 
 
Outstanding, September 29, 2012
 
989,400

 
$
10.94

 
3.6 years
 
$
10,826

 
$
9,753

 
 
 
 
 
 
 
 
 
 
 
Exercisable, September 29, 2012
 
818,400

 
$
9.82

 
2.7 years
 
 

 
$
8,985

Schedule of share-based compensation, shares authorized under stock option plans, by exercise price Range [Table Text Block]
Information regarding the stock options outstanding at September 29, 2012 is summarized below:
Stock Options
Exercise Price
 
Number
Outstanding
 
Weighted-
Average
Remaining
Contractual
Life
 
Weighted-
Average
Exercise
Price
 
Number
Exercisable
 
Weighted-
Average
Exercise
Price
Employee options:
$
6.75

 
373,999

 
1.2 years
 
$
6.75

 
373,999

 
$
6.75

 
11.25

 
329,133

 
3.7 years
 
11.25

 
329,133

 
11.25

 
16.00

 
132,200

 
7.1 years
 
16.00

 
49,200

 
16.00

 
16.60

 
109,400

 
8.1 years
 
16.60

 
21,400

 
16.60

 
 
 
944,732

 
3.7 years
 
$
10.75

 
773,732

 
$
9.52

 
 
 
 

 
 
 
 

 
 

 
 

Director options:
$12.95 to $16.40

 
44,668

 
1.4 years
 
14.95

 
44,668

 
14.95

 
 
 
989,400

 
3.6 years
 
$
10.94

 
818,400

 
$
9.82