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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) | Total | Ordinary shares [Member] | Treasury Stock [Member] | Additional paid in capital [Member] | Accumulated Loss [Member] | Accumulated other comprehensive income (loss) [Member] | Noncontrolling interest [Member]
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2013 | $ 137,326,561 | $ 17,343 | $ (398,672) | $ 146,676,163 | $ (32,667,469) | $ 23,699,196 |
Balance, shares at Dec. 31, 2013 |  | 173,427,853 |  |  |  |  |
Net income | 16,649,176 |  |  |  | 16,649,176 |  |
Other comprehensive loss | (3,662,013) |  |  |  |  | (3,662,013) |
Share-based compensation | 1,792,819 |  |  | 1,792,819 |  |  |
Follow-on equity offering, net of issuance costs | 54,624,447 | $ 5,000 |  | 54,619,447 |  |  |
Follow-on equity offering, net of issuance costs shares |  | 50,000,000 |  |  |  |  |
Options Exercise | 37,080 | $ 15 |  | 37,065 |  |  |
Options Exercise, shares |  | 150,000 |  |  |  |  |
Balance at Dec. 31, 2014 | 206,768,070 | $ 22,358 | (398,672) | 203,125,494 | (16,018,293) | 20,037,183 |
Balance, shares at Dec. 31, 2014 |  | 223,577,853 |  |  |  |  |
Net income | 13,047,584 |  |  |  | 12,956,889 |  | 90,695
Other comprehensive loss | (11,286,150) |  |  |  |  | (11,256,870) | (29,280)
Share-based compensation | 3,687,951 |  |  | 3,687,951 |  |  |
Follow-on equity offering, net of issuance costs | 27,996,959 | $ 3,850 |  | 27,993,109 |  |  |
Follow-on equity offering, net of issuance costs shares |  | 38,500,000 |  |  |  |  |
Options Exercise | 275,783 | $ 112 |  | 275,671 |  |  |
Options Exercise, shares |  | 1,115,625 |  |  |  |  |
Repurchase of stock | $ (1,350,164) |  | (1,350,164) |  |  |  |
Repurchase of stock, shares | (2,356,900) | (2,356,900) |  |  |  |  |
Capital injection from noncontrolling shareholders | $ 2,516,457 |  |  | 1,275,845 |  |  | 1,240,612
Balance at Dec. 31, 2015 | 241,656,490 | $ 26,320 | (1,748,836) | 236,358,070 | (3,061,404) | 8,780,313 | 1,302,027
Balance, shares at Dec. 31, 2015 |  | 260,836,578 |  |  |  |  |
Net income | 43,923,997 |  |  |  | 43,493,756 |  | 430,241
Other comprehensive loss | (17,605,240) |  |  |  |  | (17,502,133) | (103,107)
Share-based compensation | 2,702,089 |  |  | 2,702,089 |  |  |
Options Exercise | $ 1,051,586 | $ 212 |  | 1,051,374 |  |  |
Options Exercise, shares | 2,119,700 | 2,119,700 |  |  |  |  |
Balance at Dec. 31, 2016 | $ 271,728,922 | $ 26,532 | $ (1,748,836) | $ 240,111,533 | $ 40,432,352 | $ (8,721,820) | $ 1,629,161
Balance, shares at Dec. 31, 2016 |  | 262,956,278 |  |  |  |  |

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