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Share-Based Compensation - (Tables)
6 Months Ended
Jun. 30, 2013
Share-based Compensation [Abstract]  
Summary of restricted stock unit activity [Table Text Block]
A summary of the Company’s nonvested restricted stock unit activity with respect to the six months ended June 30, 2013 is as follows:


Number of Shares

Weighted Average Grant Date Fair Value
Nonvested at December 31, 2012

1,380


$
8.37

Granted

267


$
12.40

Vested

(419
)

$
7.69

Forfeited

(48
)

$
9.42

Nonvested at June 30, 2013

1,180


$
9.48