v2.4.0.6

Net income per share attributable to common stockholders: | 9 Months Ended
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Sep. 30, 2012
Net income per share attributable to common stockholders: |
Net income per share attributable to common stockholders: |
11. Net income per share attributable to common stockholders: The following table sets forth the computation of basic and diluted net income per share attributable to common stockholders:
|  | Three Months Ended September 30, |  | Nine Months Ended September 30, |
|  | 2012 |  | 2011 |  | 2012 |  | 2011 |
Numerator: |  |  |  |  |  |  |  |  |
Net income attributable to common stockholders, basic and diluted |  | $ | 2,777 |  | $ | 1,662 |  | $ | 5,895 |  | $ | 2,807 |
Denominator: |  |  |  |  |  |  |  |  |
Weighted average common stock, basic |  | 35,080 |  | 33,139 |  | 34,618 |  | 20,865 |
Effect of dilutive stock options |  | 2,257 |  | 3,539 |  | 2,706 |  | 3,567 |
Effect of dilutive common stock warrants |  | — |  | — |  | — |  | 21 |
Weighted average common stock, dilutive |  | 37,337 |  | 36,678 |  | 37,324 |  | 24,453 |
Net income per share attributable to common stockholders: |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.08 |  | $ | 0.05 |  | $ | 0.17 |  | $ | 0.13 |
Diluted |  | $ | 0.07 |  | $ | 0.05 |  | $ | 0.16 |  | $ | 0.11 |
The following outstanding securities were not included in the computation of diluted net income per share as the inclusion would have been anti-dilutive:
|  | Three Months Ended September 30, |  | Nine Months Ended September 30, |
|  | 2012 |  | 2011 |  | 2012 |  | 2011 |
Convertible preferred stocks |  | — |  | — |  | — |  | 10,293 |
Options to purchase common stock |  | 2,478 |  | 2,174 |  | 2,442 |  | 2,174 |
Warrants to purchase preferred stock |  | — |  | — |  | — |  | 17 |
Total |  | 2,478 |  | 2,174 |  | 2,442 |  | 12,484 |

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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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