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Description of Business and Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2013
Accounting Policies [Abstract]  
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]
                The stock-based compensation expense related to the Company’s various stock option plans was allocated as follows (in thousands):
 
 
 
Years Ended December 31,
 
 
 
2013
 
2012
 
2011
 
 
 
 
 
 
 
 
 
 
 
 
Direct operating costs
 
$
280
 
$
109
 
$
72
 
Selling and adminstrative expenses
 
 
655
 
 
868
 
 
743
 
 
 
 
 
 
 
 
 
 
 
 
Total stock-based compensation
 
$
935
 
$
977
 
$
815