Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Income Statement [Abstract]
Net income	$ 1,682	$ 7,473
Other comp. income (loss) net of tax:
Minimum pension liability	(6)	0
Comprehensive income	$ 1,676	$ 7,473