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Earnings per share (Tables)

6 Months Ended

Jun. 30, 2012

Earnings per share

Schedule of reconciliation of weighted average shares used in calculation of basic and diluted earnings per share

		Three Months Ended June 30,				Six Months Ended June 30,
		2012		2011		2012		2011
Weighted average common shares-basic		18,827,452		18,110,607		18,751,573		18,024,913
Effect of dilutive securities:
Unexercised stock options net of treasury share repurchase		388,532		430,613		417,367		—
Weighted average common shares-diluted		19,215,984		18,541,220		19,168,940		18,024,913

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- Definition

Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit).

+ References

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

-Topic 260

-SubTopic 10

-Publisher FASB

-Number

-Article

-Subparagraph

-Name Accounting Standards Codification

-Paragraph 1

-Section 50

-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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