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Earnings per Share ("EPS") | 12 Months Ended
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Dec. 31, 2012
Earnings per Share ("EPS") | 3. Earnings per Share (“EPS”) Basic EPS is calculated by dividing net income by the weighted average number of shares outstanding during the period. Unvested restricted shares, although legally issued and outstanding, are not considered outstanding for purposes of calculating basic earnings per share. Diluted EPS is calculated by dividing net income by the weighted average number of shares outstanding plus the dilutive effect, if any, of outstanding stock options, stock appreciation rights (“SAR’s”), restricted shares and restricted stock units (collectively “RSA’s”) using the treasury stock method. The following table provides share information used in the calculation of the Company's basic and diluted earnings per share:
|  | Year ended December 31, |
|  | 2012 |  | 2011 |  | 2010
Shares used in the calculation of Basic earnings per share |  |  | 13,260,739 |  |  |  | 13,064,051 |  |  |  | 12,624,495 |
Effect of dilutive securities: Stock options, SAR's, RSA's, and shares held in escrow |  |  | 1,083,838 |  |  |  | 683,762 |  |  |  | 1,022,038 |
Diluted shares used in the calculation of earnings per share |  |  | 14,344,577 |  |  |  | 13,747,813 |  |  |  | 13,646,533 |
Stock options to purchase 131,273, 1,142,840 and 1,210,970 shares for 2012, 2011 and 2010, respectively, were excluded from the computation of diluted EPS as their effect would have been anti-dilutive. At December 31, 2012, 2011 and 2010, 54,124, 59,196 and 20,630 shares of issued and outstanding unvested restricted stock, respectively, were excluded from the basic earnings per share calculation in accordance with ASC 260.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=16381557&loc=d3e4984-109258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -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 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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