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CONSOLIDATED STATEMENTS OF NET INCOME (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013
CONSOLIDATED STATEMENTS OF NET INCOME (unaudited) [Abstract] |  |  |  |
Net patient revenues | $ 76,470 | $ 65,227 | $ 144,867 | $ 126,659
Other revenues | 1,731 | 1,642 | 3,101 | 2,966
Net revenues | 78,201 | 66,869 | 147,968 | 129,625
Clinic operating costs: |  |  |  |
Salaries and related costs | 40,109 | 35,526 | 78,051 | 69,585
Rent, clinic supplies, contract labor and other | 15,205 | 12,550 | 29,421 | 25,284
Provision for doubtful accounts | 1,054 | 1,198 | 2,004 | 2,295
Closure costs | (2) | 8 | 11 | 26
Total clinic operating costs | 56,366 | 49,282 | 109,487 | 97,190
Gross margin | 21,835 | 17,587 | 38,481 | 32,435
Corporate office costs | 7,614 | 6,528 | 14,746 | 12,941
Operating income from continuing operations | 14,221 | 11,059 | 23,735 | 19,494
Interest and other income, net | 0 | 1 | 1 | 3
Interest expense | (332) | (130) | (585) | (265)
Income before taxes from continuing operations | 13,889 | 10,930 | 23,151 | 19,232
Provision for income taxes | 4,469 | 3,288 | 7,408 | 5,781
Net income from continuing operations including non-controlling interests | 9,420 | 7,642 | 15,743 | 13,451
Discontinued operations, net of tax | 0 | (268) | 0 | (468)
Net income including non-controlling interests | 9,420 | 7,374 | 15,743 | 12,983
Less: net income attributable to non-controlling interests | (2,988) | (2,460) | (5,083) | (4,348)
Net income attributable to common shareholders | 6,432 | 4,914 | 10,660 | 8,635
Basic earnings per share attributable to common shareholders: |  |  |  |
From continuing operations (in dollars per share) | $ 0.53 | $ 0.42 | $ 0.88 | $ 0.74
Revaluation of redeemable non-controlling interests, net of tax (in dollars per share) | $ (0.01) | $ 0 | $ (0.09) | $ 0
From discontinued operations (in dollars per share) | $ 0 | $ (0.01) | $ 0 | $ (0.02)
Basic (in dollars per share) | $ 0.52 | $ 0.41 | $ 0.79 | $ 0.72
Diluted earnings per share attributable to common shareholders: |  |  |  |
From continuing operations (in dollars per share) | $ 0.53 | $ 0.42 | $ 0.87 | $ 0.74
Revaluation of redeemable non-controlling interests, net of tax (in dollars per share) | $ (0.01) | $ 0 | $ (0.09) | $ 0
From discontinued operations (in dollars per share) | $ 0 | $ (0.01) | $ 0 | $ (0.02)
Diluted (in dollars per share) | $ 0.52 | $ 0.41 | $ 0.78 | $ 0.72
Shares used in computation: |  |  |  |
Basic (in shares) | 12,224 | 12,089 | 12,177 | 12,022
Diluted (in shares) | 12,226 | 12,110 | 12,184 | 12,044
Dividends declared per common share (in dollars per share) | $ 0.12 | $ 0.10 | $ 0.24 | $ 0.20
Earnings attributable to common shareholders: |  |  |  |
From continuing operations | 6,432 | 5,079 | 10,660 | 8,930
From discontinued operations | 0 | (165) | 0 | (295)
Net income attributable to common shareholders | $ 6,432 | $ 4,914 | $ 10,660 | $ 8,635

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