OTHER INCOME, NET (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
OTHER INCOME, NET [Abstract]
Interest income	$ 659	$ 267	$ 1,596	$ 654
Other income (expense)	(774)	(513)	(481)	(258)
Total other income (expense), net	$ (115)	$ (246)	$ 1,115	$ 396