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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Cash flows from operating activities        
Net income for the year $ 34,728 $ 26,572 $ 32,907  
Adjustments to reconcile net income to net cash from operating activities:        
Depreciation, amortization and impairment of goodwill and other intangibles 11,635 11,962 12,219  
Gain from sale of subsidiary, net (Appendix A) (951)  
Exchange differences on principal of deposit and loans, net (23)  
Gains in respect of trading marketable securities (115) (666) (133)  
Increase in liability for employee rights upon retirement 890 717 1,655  
Share in losses of affiliated companies, net 449 2,439 421  
Deferred income taxes (1,114) (85) (737)  
Capital (gain) losses on sale of property and equipment, net (52) (31) (270)  
Decrease (increase) in accounts receivable (4,552) 117 (1,864)  
Decrease (increase) in other current and non-current assets (5,033) (879) (4,749)  
Decrease (increase) in inventories (1,424) (658) 783  
Increase (decrease) in accounts payable 5,884 (1,176) 927  
Increase (decrease) in deferred revenues (1,122) (246) 749  
Increase (decrease) in other current and non-current liabilities 1,298 (1,201) (4,154)  
Net cash provided by operating activities 41,472 35,914 37,731  
Cash flows from investment activities        
Increase in funds in respect of employee rights upon retirement, net of withdrawals (644) (804) (708)  
Capital expenditures (13,645) (18,724) (14,976)  
Investment in affiliated company (8,920) (5,966)  
Investment in marketable securities (3,154) (11) (2,771)  
Repayment of loans from affiliated companies 1,512  
Deposit in escrow 5,005  
Proceeds from (Investment in) long - term deposit 16 (341) (283)  
Proceeds from sale of property and equipment 342 406 489  
Sale of marketable securities 4,633  
Sale of subsidiary (Appendix A) (266)  
Net cash used in investment activities (19,860) (25,706) (13,244)  
Cash flows from financing activities        
Short term credit from banking institutions, net (152) 160 (38)  
Acquisition of non-controlling interests (500)  
Dividend paid (17,088) (17,590) (19,324)  
Dividend paid to non-controlling interests (994) (1,229) (2,564)  
Net cash used in financing activities (18,234) (18,659) (22,426)  
Effect of exchange rate changes on cash and cash equivalents 693 (2,951) (5,340)  
Net increase (decrease) in cash and cash equivalents 4,071 (11,402) (3,279)  
Balance of cash and cash equivalents at beginning of year 27,016 38,418 41,697  
Balance of cash and cash equivalents at end of year 31,087 27,016 38,418 $ 41,697
Supplementary information on investing and financing activities not involving cash flows:        
Purchasing of property and equipment using a directly related liability 224 40    
Dividends declared 4,193 3,128 4,496  
Non-controlling interest purchased       0.50%
Payment to purchase non-controlling interests       $ 500,000
Working capital (excluding cash and cash equivalents), net   (1,797)    
Receivables from Sale of Subsidiary   582    
Funds in respect of employee rights upon retirement   250    
Property and equipment, net   23    
Liability for employee rights upon retirement   (275)    
Gain from sale of subsidiary 951  
Sale of subsidiary (266)  
Supplementary disclosure of cash flow information        
Interest paid 324 203 397  
Income taxes paid, net of refunds $ 17,699 $ 10,181 $ 15,078