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Significant Accounting Policies (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Oct. 02, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Changes in the Allowance for Doubtful Accounts [Line Items]        
Subsidiaries wrote-off   $ 346 $ 129 $ 147
Advertising expenses   1,466 1,459 $ 1,337
Uncertainties in income taxes   $ 144 $ 127  
Diluted earnings per share   18,750 20,125 202,000
Stock-based compensation expenses related to employee stock options   $ 1,198 $ 380 $ 320
Severance pay expenses   978 1,037 728
Doubtful debts   539 802 $ 511
Accumulated deficit   (62,278) $ (69,597)  
Lease assets   2,500,000    
Lease liabilities   5,000,000    
Finance expenses      
Customer Contracts [Member] | Minimum [Member]        
Changes in the Allowance for Doubtful Accounts [Line Items]        
Identifiable intangible assets   5 years    
Customer Contracts [Member] | Maximum [Member]        
Changes in the Allowance for Doubtful Accounts [Line Items]        
Identifiable intangible assets   9 years    
Backlog [Member]        
Changes in the Allowance for Doubtful Accounts [Line Items]        
Identifiable intangible assets   3 years    
Noncompete Agreements [Member]        
Changes in the Allowance for Doubtful Accounts [Line Items]        
Identifiable intangible assets   3 years    
Trade Names [Member]        
Changes in the Allowance for Doubtful Accounts [Line Items]        
Identifiable intangible assets   10 years    
Pointers South Africa [Member]        
Changes in the Allowance for Doubtful Accounts [Line Items]        
Issued and outstanding share capital, percentage 12.00%      
Stock issued during period, shares, issued for services 2,519,544