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Earnings Per Share | 12 Months Ended
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Dec. 31, 2012
Earnings Per Share [Abstract] |
Earnings Per Share | EARNINGS PER SHARE The following table sets forth the reconciliation from basic to diluted average common shares and the calculations of net income per common share. Net income for basic and diluted calculations does not differ.
(in thousands, except per share amounts) | 2012 |  | 2011 |  | 2010
Net income | $ | 28,903 |  |  | $ | 32,687 |  |  | $ | 21,117 |
Average common shares: |  |  |  |  |  |  |  |
Basic (weighted-average outstanding shares) | 11,899 |  |  | 11,848 |  |  | 11,782 |
Dilutive potential common shares from stock options | 159 |  |  | 118 |  |  | 111 |
Diluted (weighted-average outstanding shares) | 12,058 |  |  | 11,966 |  |  | 11,893 |
Basic earnings per share | $ | 2.43 |  |  | $ | 2.76 |  |  | $ | 1.79 |
Diluted earnings per share | $ | 2.40 |  |  | $ | 2.73 |  |  | $ | 1.78 |
Stock options totaling 38,954 shares in 2012, 78,337 shares in 2011, and 133,700 shares in 2010 were not included in the diluted earnings per share calculation because the effect would have been anti-dilutive.

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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FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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