INCOME TAXES (Schedule of Effective Tax Rate) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Income (loss) before income taxes	$ (2,174)	$ 6,294	$ (3,914)	$ 4,788
Income tax provision (benefit)	(1,345)	727	(2,786)	(320)
Net income (loss)	$ (829)	$ 5,567	$ (1,128)	$ 5,108
Effective tax rate	62.00%	12.00%	71.00%	(7.00%)