Shareholders' Equity and Share-based Payments (Details) (USD $)	3 Months Ended				0 Months Ended	3 Months Ended
	Dec. 31, 2012 item	Dec. 31, 2011	Sep. 30, 2012	Feb. 16, 2010	Jan. 25, 2013 Option	Dec. 31, 2012 1998 Plan	Dec. 31, 2011 1998 Plan	Dec. 31, 2012 Restricted Plan Non-employee directors item	Dec. 31, 2012 2009 Plan	Dec. 31, 2011 2009 Plan	Dec. 31, 2012 2009 Plan Non-employee directors	Dec. 31, 2011 2009 Plan Non-employee directors	Dec. 31, 2012 2009 Plan Performance-based Award Employees
Shareholders' Equity and Share-based Payments
Common stock, shares authorized	75,000,000		75,000,000
Preferred Stock, shares authorized	10,000,000		10,000,000
Share-based compensation
Share-based compensation expense	$ 184,000	$ 139,000				$ 10,000	$ 26,000		$ 124,000	$ 113,000	$ 50,000	$ 50,000
Excess (shortfall) in income tax benefits related to share-based compensation arrangements	(10,000)	300
Number of share-based compensation plans maintained by the company	3
Number of shares of common stock reserved for awards						3,389,000			1,200,000
Fair market value of annual award of non-vested shares								40,000
Number of quarterly installments of shares awards								4
Maximum award (in shares)													300,000
Number of shares of common stock available for awards under the plan									644,803
Reduction in applicable option exercise price of each outstanding option (in dollars per share)					$ 1.50
Stock repurchase program
Maximum number of shares of outstanding common stock approved to acquire under repurchase program				1,000,000
Number of shares of common stock purchased under the repurchase program	175	88,516
Cost of common stock purchased under the repurchase program	$ 696	$ 348,692
Average market price of common stock purchased under the repurchase program (in dollars per share)	$ 3.96	$ 3.92