INCOME TAXES - Schedule of Effective Tax Rate (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Loss before income taxes	$ (6,733)	$ (1,741)
Income tax benefit	(1,071)	(1,441)
Net loss	$ (5,662)	$ (300)
Effective tax rate	16.00%	83.00%