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CONSOLIDATED STATEMENT OF EQUITY (DEFICIT) - USD ($) $ in Thousands | Common Stock [Member] | Additional Paid-In Capital [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Accumulated Deficit [Member] | Total Radnet, Inc. Stockholders (Deficit) Equity [Member] | Noncontrolling Interest [Member] | Total
--- | --- | --- | --- | --- | --- | --- | ---
Beginning balance, shares at Dec. 31, 2013 | 40,089,196 |  |  |  |  |  |
Beginning balance, value at Dec. 31, 2013 | $ 4 | $ 173,622 | $ (50) | $ (173,656) | $ (80) | $ 2,290 | $ 2,210
Issuance of common stock upon exercise of options/warrants, shares | 1,579,695 |  |  |  |  |  |
Issuance of common stock upon exercise of options/warrants |  | 1,546 |  |  | 1,546 |  | 1,546
Stock-based compensation |  | 2,463 |  |  | 2,463 |  | 2,463
Issuance of restricted stock and other awards, shares | 1,156,785 |  |  |  |  |  |
Purchase of non-controlling interests |  | 119 |  |  | 119 | (315) | (196)
Sale of a noncontrolling interests |  |  |  |  |  | 200 | 200
Distributions paid to noncontrolling interests |  |  |  |  |  | (148) | (148)
Change in cumulative foreign currency translation adjustment |  |  | (62) |  | (62) |  | (62)
Change in fair value of cash flow hedge, net of taxes |  |  |  |  |  |  | 0
Net income |  |  |  | 1,376 | 1,376 | 309 | 1,685
Ending balance, shares at Dec. 31, 2014 | 42,825,676 |  |  |  |  |  |
Ending balance, value at Dec. 31, 2014 | $ 4 | 177,750 | (112) | (172,280) | 5,362 | 2,336 | 7,698
Issuance of common stock upon exercise of options/warrants, shares | 835,098 |  |  |  |  |  |
Issuance of common stock upon exercise of options/warrants |  | 594 |  |  | 594 |  | 594
Stock-based compensation |  | 7,635 |  |  | 7,635 |  | 7,635
Issuance of restricted stock and other awards, shares | 1,014,423 |  |  |  |  |  |
Forfeiture of restricted stock, shares | (59,053) |  |  |  |  |  |
Sale of a noncontrolling interests |  | 2,077 |  |  | 2,077 | 1,348 | 3,425
Distributions paid to noncontrolling interests |  |  |  |  |  | (729) | (729)
Change in cumulative foreign currency translation adjustment |  |  | (41) |  | (41) |  | (41)
Issuance of stock for acquisition, shares | 1,665,045 |  |  |  |  |  |
Issuance of stock for acquisition, value |  | 9,241 |  |  | 9,241 |  | 9,241
Change in fair value of cash flow hedge, net of taxes |  |  |  |  |  |  | 0
Net income |  |  |  | 7,709 | 7,709 | 929 | 8,638
Ending balance, shares at Dec. 31, 2015 | 46,281,189 |  |  |  |  |  |
Ending balance, value at Dec. 31, 2015 | $ 4 | 197,297 | (153) | (164,571) | 32,577 | 3,884 | 36,461
Cumulative effect of accounting change due to adoption of ASU 2016-09 |  |  |  | 7,130 | 7,130 |  | 7,130
Issuance of common stock upon exercise of options/warrants, shares | 314,448 |  |  |  |  |  |
Issuance of common stock upon exercise of options/warrants |  | 150 |  |  | 150 |  | 150
Stock-based compensation |  | 5,767 |  |  | 5,767 |  | 5,767
Issuance of restricted stock and other awards, shares | 937,803 |  |  |  |  |  |
Purchase of non-controlling interests |  | (495) |  |  | (495) | (599) | (1,094)
Sale of a noncontrolling interests |  | 700 |  |  | 700 |  | 700
Distributions paid to noncontrolling interests |  |  |  |  |  | (492) | (492)
Change in cumulative foreign currency translation adjustment |  |  | (49) |  | (49) |  | (49)
Return of common stock, shares | (958,536) |  |  |  |  |  |
Return of common stock, value |  | (5,032) |  |  | (5,032) |  | (5,032)
Change in fair value of cash flow hedge, net of taxes |  |  | (508) |  | 508 |  | 508
Net income |  |  |  | 7,230 | 7,230 | 774 | 8,004
Ending balance, shares at Dec. 31, 2016 | 46,574,904 |  |  |  |  |  |
Ending balance, value at Dec. 31, 2016 | $ 4 | $ 198,387 | $ 306 | $ (150,211) | $ 48,486 | $ 3,567 | $ 52,053

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