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SHAREHOLDERS' EQUITY (Detail Textuals) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Nov. 05, 2018
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Stockholders Equity Note [Line Items]          
Quarterly cash dividends   $ 2,051 $ 2,048 $ 6,149 $ 6,139
Dividend (per share)   $ 0.18 $ 0.18 $ 0.54 $ 0.54
Reclassification of prior period foreign currency gain (loss) of discontinued opperation from AOCI to accumulated surplus   $ 552   $ 552  
Subsequent Event          
Stockholders Equity Note [Line Items]          
Declared Date Nov. 05, 2018        
Dividend (per share) $ 0.18        
Payment Date Dec. 10, 2018        
Record Date Dec. 03, 2018