Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Income tax benefit	$ (1,441)	$ (1,047)
Effective tax rate	83.00%	70.00%
Unrecognized tax benefits, decrease resulting from prior period tax positions	$ 300	$ 800