Net Income Per Share (Tables)

6 Months Ended

Mar. 31, 2013

Net Income Per Share

Schedule of basic and diluted net income per share

	Three Months Ended March 31,						Six Months Ended March 31,
(in thousands, except share and per share data)	2012			2013			2012			2013
Numerator:
Net income	$	15,151		$	6,436		$	23,594		$	12,271
Less amount allocable to participating securities	(136		)	(51		)	(212		)	(97		)
Net income available for basic shareholders	15,015			6,385			23,382			12,174
Adjustment for dilutive potential common shares	1			—			1			—
Net income available for diluted common shares	$	15,016		$	6,385		$	23,383		$	12,174
Denominator:
Weighted average shares - Basic	12,140,635			12,233,308			12,117,994			12,211,769
Adjustment for dilutive potential common shares	74,762			41,083			79,582			43,788
Weighted average shares - Diluted	12,215,397			12,274,391			12,197,576			12,255,557
Basic net income per share	$	1.24		$	0.52		$	1.93		$	1.00
Diluted net income per share	$	1.23		$	0.52		$	1.92		$	0.99
Number of stock option shares excluded as their effect would be anti-dilutive	80,380			184,706			80,380			184,706