OTHER EXPENSE (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Other Income and Expenses [Abstract]
Foreign currency transaction gain (loss), before tax	$ (314)	$ (322)	$ (268)	$ 109
Investment income, net	$ 68	$ 10	$ 155	$ 202