OTHER EXPENSE (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Other Income and Expenses [Abstract]
Foreign currency transaction gain (loss), before tax	$ (849)	$ 192	$ (1,116)	$ 301
Investment income, net	$ 55	$ 58	$ 210	$ 260