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GOODWILL (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Goodwill [Line Items]    
Goodwill, Beginning Balance $ 55,490 $ 55,313
Business combination 8,086 3,664
Classifications (90) (496)
Foreign currency translation adjustments (178) (2,991)
Goodwill, Ending Balance 63,308 55,490
IT Professional Services [Member]    
Goodwill [Line Items]    
Goodwill, Beginning Balance 26,589 28,495
Business combination 7,594 0
Classifications 0 0
Foreign currency translation adjustments (33) (1,906)
Goodwill, Ending Balance 34,150 26,589
Software Services [Member]    
Goodwill [Line Items]    
Goodwill, Beginning Balance 28,901 26,818
Business combination 492 3,664
Classifications (90) (496)
Foreign currency translation adjustments (145) (1,085)
Goodwill, Ending Balance $ 29,158 $ 28,901