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Share-Based Compensation Arrangements (Tables)
 12 Months Ended
Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Share-based Compensation, Activity [Table Text Block]
A summary of activity under the plans during 2013 is as follows:
SARs:
Number of awards
 
Weighted average exercise price per share
Outstanding at January 1, 2013
100,539

 
$
11.14

     Granted
—

 
$
—

     Exercised
—

 
$
—

     Forfeited
(48,460)

 
$
13.21

Outstanding at December 31, 2013
52,079

 
$
11.81


 
Phantom Shares: *
Number of awards
 
Weighted average grant date value per share
Outstanding at January 1, 2013
487,670

 
$
5.67

Granted
23,642

 
$
9.02

Exercised
(197,093
)
 
$
6.87

Forfeited
(78,277
)
 
$
4.73

Outstanding at December 31, 2013
235,942

 
$
5.98

* Includes both non-performance and performance based shares.
 
 
 
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The fair value of each SAR was estimated as of December 31, 2013, 2012 and 2011 using the following assumptions:
 
2013
 
2012
 
2011
Risk-free interest rate
0.16%-0.78%

 
0.27%-0.52%

 
0.4%-0.83%

Dividend yield
0.0
%
 
0.0
%
 
0.0
%
Expected life (years)
1.2-3.0 years

 
2.2-4.0 years

 
3.2-5.0 years

Volatility
62.21
%
 
63.63
%
 
80.66
%