Income Taxes (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Reconciliation of the changes in the amount of unrecognized tax benefits
Balance at beginning of the fiscal year	$ 2,867	$ 4,823
Increases related to prior year tax positions	43	4
Decreases related to prior year tax positions	(134)	(2,094)
Increases related to current year tax positions	308	300
Lapse of statute	(102)	(166)
Balance at end of fiscal year	2,982	2,867
Total unrecognized tax benefits of accrued interest and penalties	$ 1,200	$ 1,100