OTHER INCOME (EXPENSE) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Other Income and Expenses [Abstract]
Other income (expense)	$ (41)	$ 778
Foreign currency transaction gain (loss), before tax	(699)	(376)
Net periodic benefit income	227	389
Investment income, net	$ 330	81
Technology recognition award		$ 700