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Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2012
Share-based Compensation [Abstract]  
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]
Restricted stock activity under the Company's 2007 Plan was as follows in the six months ended June 30, 2012:
(shares)
Employees
 
Directors
Balance, January 1, 2012
261,934

 
206,000

Granted
273,400

 
252,000

Forfeited
(2,600
)
 
—

Reduced for income tax obligations
(20,494
)
 
—

Balance, June 30, 2012
512,240

 
458,000

 
 
 
 
Vested
142,850

 
209,000

Non-vested
369,390

 
249,000