Income Taxes - Income Tax Expense Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Federal
Current income tax expense (benefit)	$ (93)	$ 162
Deferred income tax (benefit)	233	(11,308)
Total expense (benefit)	140	(11,146)
State
Current income tax expense (benefit)	23	942
Deferred income tax (benefit)	30	(617)
Total expense (benefit)	53	325
Total
Current income tax expense (benefit)	(70)	1,104
Deferred income tax (benefit)	263	(11,925)
Total expense (benefit)	$ 193	$ (10,821)