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Business Combinations, Goodwill and Intangible Assets (Narrative) (Details) - USD ($)
$ in Thousands
 2 Months Ended 3 Months Ended
Feb. 12, 2016
Mar. 31, 2016
Mar. 31, 2016
Mar. 31, 2015
Business Acquisition [Line Items]        
Aggregate amortization expense for intangible assets     $ 814 $ 510
Monits S.A. [Member]        
Business Acquisition [Line Items]        
Percentage of acquisition 100.00%      
Aggregate purchase price for acquisition $ 3,056      
Business acquisition, cash paid 1,713      
Amount in escrow account 128      
Additional contingent consideration 1,215      
Net revenues   $ 195    
Net income (loss)   142    
Fair value of contingent consideration   $ 1,215 $ 1,215  
Intangible assets $ 196      
Monits S.A. [Member] | Non-Compete Agreement/Solicitation [Member]        
Business Acquisition [Line Items]        
Amortized period, years     2 years