Stock-Based Compensation (Stock Options Valuation) (Details) (Stock Options, USD $)	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding at beginning of period (in shares)	1,059,567	891,293	611,384
Outstanding at beginning of period, Weighted Average Exercise Price (usd per share)	$ 6.71	$ 9.37	$ 10.02
Granted (in shares)	272,906	312,850	285,400
Granted, Weighted Average Exercise Price (usd per share)	$ 7.01	$ 2.95	$ 7.98
Exercised (in shares)	(263,643)	(8,450)	(600)
Exercised, Weighted Average Exercise Price (usd per share)	$ 4.31	$ 3.08	$ 5.33
Forfeited (in shares)	(5,506)	(136,126)	(4,891)
Forfeited, Weighted Average Exercise Price (usd per share)	$ 9.63	$ 15.75	$ 9.50
Outstanding at end of period (in shares)	1,063,324	1,059,567	891,293
Outstanding at end of period, Weighted Average Exercise Price (usd per share)	$ 7.37	$ 6.71	$ 9.37
Exercisable at end of period (in shares)	674,237	874,591	400,638
Exercisable at end of period, weighted average exercise price (usd per share)	$ 8.18	$ 7.13	$ 9.25
Weighted average fair value of options granted during the period (usd per share)	$ 4.38	$ 1.82	$ 4.95