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SEGMENT REPORTING (Reconciliation of Reporting Information from Segments to Consolidated Totals) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Segment Reporting Information [Line Items]      
Total revenues of reportable segment and consolidated revenues $ 279,332 $ 253,335 $ 234,636
Operating Income      
Total operating income for reportable segments 22,654 62,378 56,535
Other income, net (26) 13,138
Consolidated income before taxes on income 23,204 76,233 55,546
Assets      
Current assets 174,150 188,906 137,112
Property and equipment, net 48,866 50,460 39,047
Total assets 339,235 373,792 215,159
Other significant items      
Expenditures for assets 12,940 16,214 10,027
Asset expenditures, reportable segments and unallocated amounts 18,299 21,382 16,308
Depreciation, amortization and impairment for reportable segments 17,154 9,116 10,358
Depreciation and amortization 48,997 14,608 13,519
Segment Reconciling Items [Member]      
Operating Income      
Financing income, net 576 717 (989)
Assets      
Current assets 88,777 103,994 59,412
Investments in affiliated and other companies 4,926 7,644 16,221
Property and equipment, net 20,877 20,074 15,092
Other unallocated amounts 28,094 41,524 8,081
Other significant items      
Expenditure for assets unallocated amounts 5,359 5,168 6,281
Depreciation and amortization, unallocated amounts 5,689 5,492 3,161
Reportable Segment [Member]      
Operating Income      
Total operating income for reportable segments 23,204 76,233 56,535
Assets      
Total assets [1] 196,561 200,556 116,353
Other significant items      
Expenditures for assets 12,940 16,214 10,027
Depreciation, amortization and impairment for reportable segments $ 43,308 $ 9,116 $ 10,358
[1] Including goodwill.