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Stock-based Compensation (Tables)

3 Months Ended

Jun. 30, 2012

Stock-based Compensation

Schedule of amounts recognized in the condensed financial statements related to stock-based compensation

		Three months ended June 30,
(Dollars in thousands except earnings per share)		2012			2011
Total cost of stock-based compensation charged against income before income taxes		$	149		$	96
Amount of income tax benefit recognized in earnings		51			35
Amount charged against net income		$	98		$	61
Impact on net income per common share:
Basic		$	0.03		$	0.02
Diluted		0.03			0.02

Schedule of Black-Scholes assumptions

		Three months ended June 30,
		2012		2011
Volatility		31.1%		33.4%
Risk-free interest rate		0.6 — 1.0%		2.2 — 3.6%
Expected option life (years)		5 — 10		5 — 10
Dividend yield		1.5%		1.7%

Summary of stock option activity

		Number of Shares		Weighted- average Exercise Price per Share			Weighted- average Remaining Contractual Term		Aggregate Intrinsic Value (000s)
Outstanding at March 31, 2012		433,785		$	22.77		3.9
Options granted		103,880		50.20			6.2
Options forfeited		(7,900	)	30.36
Options expired		—
Options exercised		(29,780	)	20.97
Outstanding at June 30, 2012		499,985		28.46			4.3		$	9,016
Exercisable at June 30, 2012		210,305		20.86			3.3		1,805

Summary of the status of unvested option shares

		Number of Shares		Weighted- average Grant-Date Fair Value
Unvested at March 31, 2012		284,875		$	7.23
Options granted		103,880		12.37
Options forfeited		(7,900	)	7.86
Options vested		(91,175	)	6.80
Unvested at June 30, 2012		289,680		9.19

X

- Definition

Tabular disclosure of the number and weighted-average grant date fair value for unvested share options (or share units) that were outstanding at the beginning and end of the year, and the number of unvested share options or share units that were granted, vested, forfeited, and expired during the year.

+ References

No definition available.

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- Definition

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph g(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F



Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

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-Topic 718

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- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 718

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