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Compensation Plans (Tables)
12 Months Ended
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Outstanding Long Term Incentive Awards [Table Text Block]
(in thousands, except share and per share data)

2014 - 2016 Cycle
 
2015 - 2017 Cycle
Shares issuable at target
107,642

 
126,000

Maximum shares issuable
141,577

 
157,250

Unrecognized compensation cost
$
746

 
$
1,454

Weighted average grant date fair value
$
16.84

 
$
19.21

Summary of Employee Stock Option and SSARs Activity
Following is a summary of the employee stock option and SSAR activity for 2015.

(in thousands, except share and per share data)
Shares
 
Weighted
Average
Exercise Price
 
Weighted
Average
Remaining
Contractual Term
 
Aggregate
Intrinsic Value
Outstanding at January 1, 2015
401,581

 
$
19.24

 
 
 
 
Granted

 

 
 
 
 
Exercised
(13,478
)
 
21.54

 
 
 
 
Forfeited

 

 
 
 
 
Outstanding at December 31, 2015
388,103

 
$
19.15

 
2.8 years
 
$
3,569

Exercisable at December 31, 2015
388,103

 
$
19.15

 
2.8 years
 
$
3,569

Summary of Restricted Stock Units Activity
A summary of the status of the Company's RSU awards as of December 31, 2015 and changes during the year then ended is presented below.
 
Shares
 
Weighted
Average
Grant Date
Fair Value
Outstanding at January 1, 2015
139,849

 
$
13.81

Granted
6,088

 
20.69

Vested
(58,679
)
 
13.79

Forfeited
(904
)
 
13.33

Outstanding at December 31, 2015
86,354

 
$
14.31

Stock Options and SSARs  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Various Information
Various information related to the stock options and SSARs is shown below.

(in thousands)
2015
 
2014
 
2013
Compensation expense
$
50

 
$
103

 
$
213

Intrinsic value of option exercises on date of exercise
$
74

 
$
226

 
$
300

Cash received from the exercise of stock options
$
126

 
$
149

 
$
2,040

Restricted Stock Units (RSUs)  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Various Information
Various information related to the RSUs is shown below.

(in thousands)
2015
 
2014
 
2013
Compensation expense
$
725

 
$
945

 
$
1,142

Total fair value at vesting date
809

 
913

 
828

Total unrecognized compensation cost for nonvested stock units
942

 
1,462

 
2,168

Expected years to recognize unearned compensation
1.7 years

 
2.7 years

 
3.6 years

Stock Plan for Non-Management Directors  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Various Information
Various information related to the Director Plan is shown below.

(in thousands, except share and per share data)
2015
 
2014
 
2013
Shares issued
16,283

 
23,135

 
16,990

Weighted average fair value
$
24.43

 
$
19.20

 
$
15.40

Compensation expense
$
373

 
$
329

 
$
262