v2.4.0.8

Net Income Per Share (Tables) | 9 Months Ended
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Sep. 30, 2013
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | The calculation of basic and diluted net income per share is as follows (in thousands, except per share amounts):
| Three Months Ended September 30, | Nine Months Ended September 30,
| 2013 |  | 2012 | 2013 |  | 2012
Basic: |  |  |  |  |  |  |  |  |  |
Net income | $ | 7,755 |  |  | $ | 6,920 |  | $ | 17,156 |  |  | $ | 10,646 |
Weighted average shares outstanding — basic | 35,133 |  |  | 33,193 |  | 34,499 |  |  | 33,316 |
Net income per share — basic | $ | 0.22 |  |  | $ | 0.21 |  | $ | 0.50 |  |  | $ | 0.32 |
Diluted: |  |  |  |  |  |  |  |  |  |
Net income | $ | 7,755 |  |  | $ | 6,920 |  | $ | 17,156 |  |  | $ | 10,646 |
Weighted average shares outstanding — basic | 35,133 |  |  | 33,193 |  | 34,499 |  |  | 33,316 |
Add: Dilutive effect of employee stock plans | 1,057 |  |  | 875 |  | 967 |  |  | 925 |
Weighted average shares outstanding — diluted | 36,190 |  |  | 34,068 |  | 35,466 |  |  | 34,241 |
Net income per share — diluted | $ | 0.21 |  |  | $ | 0.20 |  | $ | 0.48 |  |  | $ | 0.31 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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