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4. EARNINGS PER SHARE (Tables) | 9 Months Ended
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Sep. 30, 2012
Earnings Per Share Tables |
EARNINGS PER SHARE |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2012 |  |  | 2011 |  |  | 2012 |  |  | 2011 |
Net income attributable to RadNet, Inc.'s common stockholders |  | $ | 5,053 |  |  | $ | 39 |  |  | $ | 7,888 |  |  | $ | 2,684 |
BASIC INCOME PER SHARE ATTRIBUTABLE TO RADNET, INC.'S COMMON STOCKHOLDERS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of common shares outstanding during the period |  |  | 38,340,482 |  |  |  | 37,426,460 |  |  |  | 37,737,467 |  |  |  | 37,347,946 |
Basic income per share attributable to RadNet, Inc.'s common stockholders |  | $ | 0.13 |  |  | $ | 0.00 |  |  | $ | 0.21 |  |  | $ | 0.07 |
DILUTED INCOME PER SHARE ATTRIBUTABLE TO RADNET, INC.'S COMMON STOCKHOLDERS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of common shares outstanding during the period |  |  | 38,340,482 |  |  |  | 37,426,460 |  |  |  | 37,737,467 |  |  |  | 37,347,946 |
Add nonvested restricted stock subject only to service vesting |  |  | 560,000 |  |  |  | – |  |  |  | 516,655 |  |  |  | – |
Add additional shares issuable upon exercise of stock options and warrants |  |  | 960,203 |  |  |  | 1,043,513 |  |  |  | 990,177 |  |  |  | 1,731,052 |
Weighted average number of common shares used in calculating diluted income per share |  |  | 39,860,685 |  |  |  | 38,469,973 |  |  |  | 39,244,299 |  |  |  | 39,078,998 |
Diluted income per share attributable to RadNet, Inc.'s common stockholders |  | $ | 0.13 |  |  | $ | 0.00 |  |  | $ | 0.20 |  |  | $ | 0.07 |

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- Definition Tabular disclosure of the reconciliation of basic net earnings per share (or unit) to diluted earnings per share (or unit). + 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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