Stock Based Compensation (Details) (USD $)	3 Months Ended					0 Months Ended	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Stock options	Dec. 31, 2011 Stock options	Jan. 28, 2010 2010 Stock Incentive Plan	Jan. 28, 2010 2010 Stock Incentive Plan Maximum	Dec. 31, 2012 2010 Stock Incentive Plan Maximum	Dec. 31, 2012 2010 Stock Incentive Plan Stock options	Dec. 31, 2012 2010 Stock Incentive Plan Restricted stock	Dec. 31, 2012 2001 Stock Incentive Plan Stock options
Stock Based Compensation
Number of shares of common stock authorized for issuance					1,000,000
Period during which awards may be granted						10 years	10 years
Shares available for issuance								360,875
Options outstanding (in shares)								463,633		992,250
Restricted stock outstanding (in shares)									91,884
Stock-based compensation expense (in dollars)	$ 202,000	$ 316,000
Unrecognized compensation cost (in dollars)	845,000
Weighted average period in which unrecognized compensation cost is expected to be recognized	23 months
Options exercised (in shares)			90,000	52,250
Cash received from option exercises (in dollars)			$ 414,000	$ 113,000