Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2016
Feb. 28, 2017
Jun. 30, 2016
Document And Entity Information      
Entity Registrant Name MAGICJACK VOCALTEC LTD    
Entity Central Index Key 0001005699    
Document Type 10-K    
Document Period End Date Dec. 31, 2016    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Is Entity a Well-known Seasoned Issuer? No    
Is Entity a Voluntary Filer? No    
Is Entity's Reporting Status Current? No    
Entity Filer Category Accelerated Filer    
Entity Public Float     $ 63,013,209
Entity Common Stock, Shares Outstanding   16,050,687  
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2016