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SEGMENT REPORTING (Schedule of Revenue and Long-Lived Assets by Geographical Areas) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues $ 279,332 $ 253,335 $ 234,636
Property and equipment, net 48,866 50,460 39,047
IL [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 110,102 116,186 116,391
Property and equipment, net 17,933 16,478 16,757
BR [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 98,020 90,842 89,455
Property and equipment, net 21,218 24,562 17,969
Other Foreign Countries [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 71,228 46,307 28,790
Property and equipment, net $ 9,715 $ 9,420 $ 4,321