Stock Based Compensation (Details) (USD $)	3 Months Ended		9 Months Ended								0 Months Ended
	Jun. 30, 2013 Restricted stock	Jun. 30, 2012 Restricted stock	Jun. 30, 2013 Restricted stock	Jun. 30, 2012 Restricted stock	Jun. 30, 2013 Restricted stock units	Jun. 30, 2012 Restricted stock units	Jan. 28, 2010 1991 Stock Option Plan	Jan. 28, 2010 2001 Stock Incentive Plan	Jun. 30, 2013 2010 Stock Incentive Plan	Jan. 28, 2010 2010 Stock Incentive Plan	Jan. 28, 2010 2010 Stock Incentive Plan Maximum
Stock Based Compensation
Number of shares of common stock authorized for issuance										1,000,000
Period during which awards may be granted											10 years
Shares available for issuance							0	0	167,218
Compensation expense (in dollars)	$ 153,000	$ 75,000	$ 328,000	$ 164,000
Unamortized compensation cost (in dollars)	$ 1,434,000		$ 1,434,000
Unamortized cost is expected to be recognized over a weighted-average period			2 years 1 month 6 days
Restricted Stock
Unvested balance at the beginning of the period (in shares)			99,883	40,000
Granted (in shares)	30,000		79,843	61,883
Vested (in shares)			(6,361)
Forfeited/Cancelled (in shares)			(8,000)	(2,000)
Unvested balance at the end of the period (in shares)	165,365	99,883	165,365	99,883
Restricted Stock, Weighted Average Grant Date Fair Value
Unvested balance at the beginning of the period (in dollars per share)			$ 9.11	$ 10.99
Granted (in dollars per share)			$ 12.43	$ 7.86	$ 11.68	$ 7.86
Vested (in dollars per shares)			$ 7.86
Forfeited/Cancelled (in dollars per share)			$ 7.86	$ 7.86
Unvested balance at the end of the period (in dollars per share)	$ 10.82	$ 9.11	$ 10.82	$ 9.11
Restricted stock units
Number of units issued (in shares)					116,314	135,491