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Goodwill (Tables)
 9 Months Ended
Sep. 30, 2014
Schedule of Goodwill [Table Text Block]
Entity acquired   Acquisition date     Goodwill  
Equity Partners   June 2011   $ 573  
HGP   February 2012     4,728  
NLEX   June 2014     6,185  
Total goodwill       $ 11,486