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Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2013
Stock-Based Compensation [Abstract]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

 

 

Three Months Ended

March 31,

 

 

 

2013

 

 

2012

 

Weighted average fair value of grants

 

$

2.50

 

 

$

2.03

 

Risk-free interest rate

 

 

1.86

%

 

 

2.03

%

Dividend yield

 

 

1.76

%

 

 

1.24

%

Expected volatility

 

 

23.21

%

 

 

22.04

%

Expected life in months

 

 

69

 

 

 

68

 

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

 

 

Shares

 

 

Weighted-

Average

Exercise

Price

 

 

Weighted-

Average

Remaining

Contractual

Term

(Years)

 

 

Aggregate

Intrinsic

Value

 

Outstanding at December 31, 2012

 

 

183,574

 

 

$

9.92

 

 

 

 

 

 

 

Granted

 

 

31,257

 

 

 

12.52

 

 

 

 

 

 

 

Exercised

 

 

(1,000)

 

 

 

10.66

 

 

 

 

 

 

 

Outstanding at March 31, 2013

 

 

213,831

 

 

 

10.40

 

 

 

6.37

 

 

$

472,616

 

Exercisable at March 31, 2013

 

 

140,902

 

 

$

10.26

 

 

 

5.03

 

 

$

341,293