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INCOME TAXES (Schedule of Provision for Income Taxes) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Oct. 31, 2017
Jul. 31, 2017
Apr. 30, 2017
Jan. 31, 2017
Oct. 31, 2016
Jul. 31, 2016
Apr. 30, 2016
Jan. 31, 2016
Oct. 31, 2017
Oct. 31, 2016
Oct. 31, 2015
Current:                      
U.S. taxes                 $ 308 $ 1,362 $ 4,600
Foreign taxes                 4,185 4,456 3,752
Current provision for income taxes                 4,493 5,818 8,352
Deferred:                      
U.S. taxes                 1,236 (176) (896)
Foreign taxes                 (128) (49) (117)
Deferred provision for income taxes                 1,108 (225) (1,013)
Provision for income taxes $ 2,238 $ 1,353 $ 1,467 $ 543 $ 1,539 $ 1,120 $ 1,225 $ 1,709 $ 5,601 $ 5,593 $ 7,339