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Net Income (Loss) Per Share (Tables) | 9 Months Ended
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Sep. 30, 2013
Computation of Net Income (Loss) Per Share Basic and Diluted | The following table includes net income (loss) applicable to common stockholders used to compute basic net income (loss) per share for the periods ended (in thousands, except per share amount):
|  | Nine months ended September 30, |
|  | 2012 |  |  | 2013 |
|  | Class A |  |  | Class B |  |  | Class A |  |  | Class B |
Basic net income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) from continuing operations |  | $ | (292 | ) |  | $ | (475 | ) |  | $ | 87 |  |  | $ | 273 |
Dividends paid to participating securities |  |  | — |  |  |  | (262 | ) |  |  | — |  |  |  | — |
Net income (loss) from continuing operations applicable to common stockholders |  | $ | (292 | ) |  | $ | (737 | ) |  | $ | 87 |  |  | $ | 273 |
Discontinued operations, net of tax |  |  | (27 | ) |  |  | (68 | ) |  |  | 207 |  |  |  | 645 |
Net income (loss) applicable to common stockholders |  | $ | (319 | ) |  | $ | (805 | ) |  | $ | 294 |  |  | $ | 918 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of shares outstanding used to calculate basic net income (loss) per share |  |  | 9,576 |  |  |  | 24,303 |  |  |  | 9,168 |  |  |  | 26,280 |
Basic net income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) from continuing operations applicable to common stockholders |  | $ | (0.03 | ) |  | $ | (0.03 | ) |  | $ | 0.01 |  |  | $ | 0.01 |
Discontinued operations, net of tax |  |  | (0.00 | ) |  |  | (0.00 | ) |  |  | 0.02 |  |  |  | 0.02 |
Basic net income (loss) per share applicable to common stockholders |  | $ | (0.03 | ) |  | $ | (0.03 | ) |  | $ | 0.03 |  |  | $ | 0.03 |
|  | Three months ended September 30, |
|  | 2012 |  |  | 2013 |
|  | Class A |  |  | Class B |  |  | Class A |  |  | Class B |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) from continuing operations |  | $ | (172 | ) |  | $ | (318 | ) |  | $ | 133 |  |  | $ | 465 |
Dividends paid to participating securities |  |  | — |  |  |  | (123 | ) |  |  | — |  |  |  | — |
Net income (loss) from continuing operations applicable to common stockholders |  | $ | (172 | ) |  | $ | (441 | ) |  | $ | 133 |  |  | $ | 465 |
Discontinued operations, net of tax |  |  | (15 | ) |  |  | (38 | ) |  |  | 196 |  |  |  | 687 |
Net income (loss) applicable to common stockholders |  | $ | (187 | ) |  | $ | (479 | ) |  | $ | 329 |  |  | $ | 1,152 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of shares outstanding used to calculate basic net income (loss) per share |  |  | 9,570 |  |  |  | 24,536 |  |  |  | 8,377 |  |  |  | 27,308 |
Basic net income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) from continuing operations applicable to common stockholders |  | $ | (0.02 | ) |  | $ | (0.02 | ) |  | $ | 0.02 |  |  | $ | 0.02 |
Discontinued operations, net of tax |  |  | (0.00 | ) |  |  | (0.00 | ) |  |  | 0.02 |  |  |  | 0.02 |
Basic net income (loss) per share applicable to common stockholders |  | $ | (0.02 | ) |  | $ | (0.02 | ) |  | $ | 0.04 |  |  | $ | 0.04 |
The following table calculates net income (loss) to diluted net income (loss) applicable to common stockholders used to compute diluted net income (loss) per share for the periods ended (in thousands, except per share amounts):
|  | Nine months ended September 30, |
|  | 2012 |  |  | 2013 |
|  | Class A |  |  | Class B |  |  | Class A |  |  | Class B |
Diluted net income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) from continuing operations |  | $ | (292 | ) |  | $ | (475 | ) |  | $ | 87 |  |  | $ | 273 |
Dividends paid to participating securities |  |  | — |  |  |  | (262 | ) |  |  | — |  |  |  | — |
Reallocation of net loss for Class A shares as a result of conversion of Class A to Class B shares |  |  | — |  |  |  | (292 | ) |  |  | — |  |  |  | 87 |
Net income (loss) from continuing operations applicable to common stockholders |  | $ | (292 | ) |  | $ | (1,029 | ) |  | $ | 87 |  |  | $ | 360 |
Discontinued operations, net of tax |  |  | (27 | ) |  |  | (68 | ) |  |  | 204 |  |  |  | 648 |
Reallocation of discontinued operations for Class A shares as a result of conversion of Class A to Class B shares |  |  | — |  |  |  | (27 | ) |  |  | — |  |  |  | 204 |
Diluted discontinued operations, net of tax |  | $ | (27 | ) |  | $ | (95 | ) |  | $ | 204 |  |  | $ | 852 |
Net income (loss) applicable to common stockholders |  | $ | (319 | ) |  | $ | (1,124 | ) |  | $ | 291 |  |  | $ | 1,212 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of shares outstanding used to calculate basic net income (loss) per share |  |  | 9,576 |  |  |  | 24,303 |  |  |  | 9,168 |  |  |  | 26,280 |
Weighted average stock options and warrants and common shares subject to repurchase or cancellation |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 923 |
Conversion of Class A to Class B common shares outstanding |  |  | — |  |  |  | 9,576 |  |  |  | — |  |  |  | 9,168 |
Weighted average number of shares outstanding used to calculate diluted net income (loss) per share |  |  | 9,576 |  |  |  | 33,879 |  |  |  | 9,168 |  |  |  | 36,371 |
Diluted net income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) from continuing operations applicable to common stockholders |  | $ | (0.03 | ) |  | $ | (0.03 | ) |  | $ | 0.01 |  |  | $ | 0.01 |
Discontinued operations, net of tax |  |  | (0.00 | ) |  |  | (0.00 | ) |  |  | 0.02 |  |  |  | 0.02 |
Net income (loss) per share applicable to common stockholders |  | $ | (0.03 | ) |  | $ | (0.03 | ) |  | $ | 0.03 |  |  | $ | 0.03 |
|  | Three months ended September 30, |
|  | 2012 |  |  | 2013 |
|  | Class A |  |  | Class B |  |  | Class A |  |  | Class B |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) from continuing operations |  | $ | (172 | ) |  | $ | (318 | ) |  | $ | 129 |  |  | $ | 469 |
Dividends paid to participating securities |  |  | — |  |  |  | (123 | ) |  |  | — |  |  |  | — |
Reallocation of net income (loss) for Class A shares as a result of conversion of Class A to Class B shares |  |  | — |  |  |  | (172 | ) |  |  | — |  |  |  | 129 |
Net income (loss) from continuing operations applicable to common stockholders |  | $ | (172 | ) |  | $ | (613 | ) |  | $ | 129 |  |  | $ | 598 |
Diluted discontinued operations, net of tax |  |  | (15 | ) |  |  | (38 | ) |  |  | 191 |  |  |  | 692 |
Reallocation of diluted discontinued operations for Class A shares as a result of conversion of Class A to Class B shares |  |  | — |  |  |  | (15 | ) |  |  | — |  |  |  | 191 |
Diluted discontinued operations, net of tax |  | $ | (15 | ) |  | $ | (53 | ) |  | $ | 191 |  |  | $ | 883 |
Net income (loss) applicable to common stockholders |  | $ | (187 | ) |  | $ | (666 | ) |  | $ | 320 |  |  | $ | 1,481 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of shares outstanding used to calculate basic net income (loss) per share |  |  | 9,570 |  |  |  | 24,536 |  |  |  | 8,377 |  |  |  | 27,308 |
Weighted average stock options and warrants and common shares subject to repurchase or cancellation |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1,592 |
Conversion of Class A to Class B common shares outstanding |  |  | — |  |  |  | 9,570 |  |  |  | — |  |  |  | 8,377 |
Weighted average number of shares outstanding used to calculate diluted net income (loss) per share |  |  | 9,570 |  |  |  | 34,106 |  |  |  | 8,377 |  |  |  | 37,277 |
Diluted net income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) from continuing operations applicable to common stockholders |  | $ | (0.02 | ) |  | $ | (0.02 | ) |  | $ | 0.02 |  |  | $ | 0.02 |
Discontinued operations, net of tax |  |  | (0.00 | ) |  |  | (0.00 | ) |  |  | 0.02 |  |  |  | 0.02 |
Diluted net income (loss) per share applicable to common stockholders |  | $ | (0.02 | ) |  | $ | (0.02 | ) |  | $ | 0.04 |  |  | $ | 0.04 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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