Income Taxes (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Income Tax Disclosure [Abstract]
Income tax expense	$ 2,910,000	$ 3,245,000	$ 4,553,000	$ 4,404,000
Effective tax rate	25.00%	50.00%	24.00%	43.00%
Federal statutory rate			35.00%	35.00%
Increase in valuation allowance		$ 1,400,000