Earnings Per Common Share (Tables)

12 Months Ended

Sep. 30, 2012

Earnings Per Common Share [Abstract]

Calculation of weighted average common shares and common equivalent shares outstanding

	YEAR ENDED SEPTEMBER 30,
	2012		2011		2010
Net income	$	35,118	$	29,711	$	14,082
Weighted average common shares and common share equivalents:
Common shares		12,735,520		12,441,313		12,062,627
Common share equivalents		100,719		131,334		323,409
Total weighted average common shares and common share equivalents		12,836,239		12,572,647		12,386,036
Earnings per share:
Basic	$	2.76	$	2.39	$	1.17
Diluted	$	2.74	$	2.36	$	1.14