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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY AND COMPREHENSIVE INCOME (USD $) | Total | Additional paid-in capital | Statutory reserve | Retained earnings | Accumulated other comprehensive income (loss) | Total comprehensive income | Class A Common shares | Class B Common shares | Class B Common shares Common shares subscription receivable
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at Feb. 28, 2009 | $ 3,355,345 | $ 559,898 | $ 2,660,818 | $ 21,400 | $ 113,229 |  |  | $ 120,000 | $ (120,000)
Balance (in shares) at Feb. 28, 2009 |  |  |  |  |  |  |  | 120,000,000 |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Capital contribution | 219,743 | 219,743 |  |  |  |  |  |  |
Net income | 14,244,959 |  |  | 14,244,959 |  | 14,244,959 |  |  |
Provision for statutory reserve |  |  | 2,196,625 | (2,196,625) |  |  |  |  |
Foreign currency translation adjustment | 21,493 |  |  |  | 21,493 | 21,493 |  |  |
Net unrealized gains (loss) on available-for-sale securities, net of tax effect of $30,474, $(712) and $(28,177) for the year ended 2012, 2011 and 2010 respectively | 84,531 |  |  |  | 84,531 | 84,531 |  |  |
Total comprehensive income |  |  |  |  |  | 14,350,983 |  |  |
Balance at Feb. 28, 2010 | 17,926,071 | 779,641 | 4,857,443 | 12,069,734 | 219,253 |  |  | 120,000 | (120,000)
Balance (in shares) at Feb. 28, 2010 |  |  |  |  |  |  |  | 120,000,000 |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Subscription received | 120,000 |  |  |  |  |  |  |  | 120,000
Conversion of Series A convertible redeemable prefer shares upon initial public offering | 9,000,000 | 8,995,000 |  |  |  |  |  | 5,000 |
Conversion of Series A convertible redeemable prefer shares upon initial public offering (in shares) |  |  |  |  |  |  |  | 5,000,000 |
Issuance of Class A common shares, net of issuance cost of $(2,430,995) | 127,002,205 | 126,974,605 |  |  |  |  | 27,600 |  |
Issuance of Class A common shares, net of issuance cost of $(2,430,995) (in shares) |  |  |  |  |  |  | 27,600,000 |  |
Net income | 24,041,150 |  |  | 24,041,150 |  | 24,041,150 |  |  |
Provision for statutory reserve |  |  | 3,383,254 | (3,383,254) |  |  |  |  |
Dividends to shareholders | (30,000,000) | (30,000,000) |  |  |  |  |  |  |
Share-based compensation | 5,306,472 | 5,306,472 |  |  |  |  |  |  |
Foreign currency translation adjustment | 1,658,010 |  |  |  | 1,658,010 | 1,658,010 |  |  |
Transfer to statements of operations of realized gains on available for sale securities, net of tax effect of $1,607 | (4,822) |  |  |  | (4,822) | (4,822) |  |  |
Net unrealized gains (loss) on available-for-sale securities, net of tax effect of $30,474, $(712) and $(28,177) for the year ended 2012, 2011 and 2010 respectively | 2,138 |  |  |  | 2,138 | 2,138 |  |  |
Total comprehensive income |  |  |  |  |  | 25,696,476 |  |  |
Balance at Feb. 28, 2011 | 155,051,224 | 112,055,718 | 8,240,697 | 32,727,630 | 1,874,579 |  | 27,600 | 125,000 |
Balance (in shares) at Feb. 28, 2011 |  |  |  |  |  |  | 27,600,000 | 125,000,000 |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Conversion of Class B common shares to Class A common shares |  |  |  |  |  |  | 15,319 | (15,319) |
Conversion of Class B common shares to Class A common shares (in shares) |  |  |  |  |  |  | 15,319,000 | (15,319,000) |
Net income | 24,313,653 |  |  | 24,313,653 |  | 24,313,653 |  |  |
Provision for statutory reserve |  |  | 2,262,016 | (2,262,016) |  |  |  |  |
Issuance of common shares pursuant to stock plan | (184,614) | (186,972) |  |  |  |  | 2,358 |  |
Issuance of common shares pursuant to stock plan (in shares) |  |  |  |  |  |  | 2,358,044 |  |
Share-based compensation | 7,901,243 | 7,901,243 |  |  |  |  |  |  |
Foreign currency translation adjustment | 3,127,206 |  |  |  | 3,127,206 | 3,127,206 |  |  |
Net unrealized gains (loss) on available-for-sale securities, net of tax effect of $30,474, $(712) and $(28,177) for the year ended 2012, 2011 and 2010 respectively | (91,421) |  |  |  | (91,421) | (91,421) |  |  |
Total comprehensive income |  |  |  |  |  | 27,349,438 |  |  |
Balance at Feb. 29, 2012 | $ 190,117,291 | $ 119,769,989 | $ 10,502,713 | $ 54,779,267 | $ 4,910,364 |  | $ 45,277 | $ 109,681 |
Balance (in shares) at Feb. 29, 2012 |  |  |  |  |  |  | 45,277,044 | 109,681,000 |

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