OTHER INCOME (EXPENSE) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Other Income and Expenses [Abstract]
Currency exchange gains (losses)	$ 770	$ 286	$ 220
Investment income (loss)	$ 316	$ 424	$ 110