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Note 5 - Net Income per Share
9 Months Ended
Sep. 30, 2012
Earnings Per Share [Text Block]

5. Net Income per Share — Basic net income per share excludes dilution and is computed by dividing net income by the weighted average number of common shares outstanding for the period. Diluted net income per share is calculated using the treasury stock method and reflects the potential dilution that would occur if outstanding securities or other contracts to issue common stock were exercised or converted into common stock.  For the three and nine months ended September 30, 2012 and 2011, the Company had securities outstanding, which could potentially dilute basic net income per share in the future, but were excluded from the computation of diluted net income per share in the periods presented, as their effect would have been anti-dilutive. The following table sets forth the computation of basic and diluted net income per share (in thousands, except per share amounts):


 

Three months ended September 30,

Nine months ended September 30,

 

2012

2011

2012

2011

Numerator:

                               

Net income

  $ 5,921   $ 5,473   $ 15,508   $ 10,848
                                 

Denominator:

                               

Weighted average outstanding shares used to compute basic net income per share

    35,145     33,594     34,677     34,149

Effect of dilutive securities

    1,293     646     1,331     1,126

Weighted average outstanding shares used to compute diluted net income per share

    36,438     34,240     36,008     35,275
                                 

Net income per share - basic

  $ 0.17   $ 0.16   $ 0.45   $ 0.32

Net income per share - diluted

  $ 0.16   $ 0.16   $ 0.43   $ 0.31

For the three months ended September 30, 2012 and 2011, approximately 1.0 million and 5.9 million weighted common stock equivalents, respectively, were excluded from the calculation of diluted net income per share because their inclusion would have been anti-dilutive. For the nine months ended September 30, 2012 and 2011, approximately 1.3 million and 4.8 million weighted common stock equivalents, respectively, were excluded from the calculation of diluted net income per share because their inclusion would have been anti-dilutive.