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7. Earnings Per Share | 6 Months Ended
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Jun. 30, 2013
Earnings per share: |
Earnings Per Share | Earnings per share for the three-month and six-month periods ended June 30, 2013 and 2012 were calculated using the weighted average number of shares outstanding for the related period. The following table reconciles the number of shares used in the computations of basic and diluted earnings per share for the three-month and six-month periods ended June 30, 2013 and 2012:
|  | Six Months Ended |  |  | Three Months Ended |
|  | June 30, |  |  | June 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
|  | (In thousands) |  |  | (In thousands) |
Weighted average number of common shares outstanding during the period used to compute basic earnings per share |  |  | 20,989 |  |  |  | 19,305 |  |  |  | 20,534 |  |  |  | 19,360 |
|  |  | $ |  |  |  |  |  |  |  |  |  |  |  |  |
Incremental common shares attributable to exercise of outstanding options and warrants |  |  | 10,799 |  |  |  | 5,331 |  |  |  | 11,175 |  |  |  | 3,923 |
|  |  | $ |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of common shares used to compute diluted earnings per share |  |  | 31,788 |  |  |  | 24,636 |  |  |  | 31,709 |  |  |  | 23,283 |
If the anti-dilutive effects of common stock equivalents were considered, shares included in the diluted earnings per share calculation for the three-month and six-month periods ended June 30, 2013 would have included an additional 2.2 million and 1.5 million shares, respectively, attributable to the exercise of outstanding options and warrants. For the three-month and six-month periods ended June 30, 2012, the anti-dilutive shares were 2.1 million and 7.2 million, respectively.

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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 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: 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 3: 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 4: 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=32703322&loc=d3e4984-109258 Reference 5: 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=26872669&loc=d3e20235-122688 + Details
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