Income Taxes (Deferred Tax Valuation Allowance) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Deferred Tax Valuation Allowance [Roll Forward]
Balance at the beginning of the year	$ 8,450	$ 2,600	$ 860
Additions to valuation allowance	3,900	5,850	1,740
Balance at the end of the year	$ 12,350	$ 8,450	$ 2,600