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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)
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Common Stock [Member]
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Additional Paid-in Capital [Member]
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Statutory Reserves
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Development Fund
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Accumulated Other Comprehensive Income (Loss) [Member]
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Retained Earnings [Member]
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Total
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|---|---|---|---|---|---|---|---|
| Balance at Dec. 31, 2008 | $ 19,652 | $ 9,329,371 | $ 1,085,403 | $ 542,701 | $ 2,345,698 | $ 1,954,768 | $ 15,277,593 |
| Balance (in Shares) at Dec. 31, 2008 | 19,652,226 | ||||||
| Sale of common stock | 12,811 | 93,565,189 | 93,578,000 | ||||
| Sale of common stock (in Shares) | 12,810,890 | ||||||
| Offering costs | (12,407,007) | (12,407,007) | |||||
| Exercise of warrants | 169 | 290,721 | 290,890 | ||||
| Exercise of warrants (in Shares) | 168,632 | ||||||
| Stock-based compensation | 333,387 | 333,387 | |||||
| Net income | 12,369,062 | 12,369,062 | |||||
| Transfer to statutory reserve and development fund | 1,286,315 | 643,158 | (1,929,473) | ||||
| Foreign currency translation gain (loss) | (10,482) | (10,482) | |||||
| Balance at Dec. 31, 2009 | 32,632 | 91,111,661 | 2,371,718 | 1,185,859 | 2,335,216 | 12,394,357 | 109,431,443 |
| Balance (in Shares) at Dec. 31, 2009 | 32,631,748 | ||||||
| Offering costs | (320,000) | (320,000) | |||||
| Purchase of treasury stock | (798) | (6,945,152) | (6,945,950) | ||||
| Purchase of treasury stock (in Shares) | (798,300) | ||||||
| Exercise of warrants | 1,759 | 6,962,751 | 6,964,510 | ||||
| Exercise of warrants (in Shares) | 1,759,114 | ||||||
| Stock-based compensation | 275,698 | 275,698 | |||||
| Net income | 30,349,037 | 30,349,037 | |||||
| Transfer to statutory reserve and development fund | 3,755,921 | 1,877,960 | (5,633,881) | ||||
| Foreign currency translation gain (loss) | 3,980,259 | 3,980,259 | |||||
| Balance at Dec. 31, 2010 | 33,593 | 91,084,958 | 6,127,639 | 3,063,819 | 6,315,475 | 37,109,513 | 143,734,997 |
| Balance (in Shares) at Dec. 31, 2010 | 33,592,562 | 33,592,562 | |||||
| Stock-based compensation | 102,626 | 102,626 | |||||
| Dividend declared | (6,718,512) | (6,718,512) | |||||
| Net income | 39,805,629 | 39,805,629 | |||||
| Transfer to statutory reserve and development fund | 3,029,967 | 1,514,984 | (4,544,951) | ||||
| Foreign currency translation gain (loss) | 8,454,482 | 8,454,482 | |||||
| Balance at Dec. 31, 2011 | $ 33,593 | $ 91,187,584 | $ 9,157,606 | $ 4,578,803 | $ 14,769,957 | $ 65,651,679 | $ 185,379,222 |
| Balance (in Shares) at Dec. 31, 2011 | 33,592,562 | 33,592,562 |
| X | ||||||||||
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- Definition
Transfer to statutory reserve and development fund. No definition available.
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| X | ||||||||||
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- Definition
Represents increases or decreases in additional paid in capital not separately disclosed. No definition available.
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| X | ||||||||||
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- Definition
Total number of shares of common stock held by shareholders. May be all or portion of the number of common shares authorized. These shares represent the ownership interest of the common shareholders. Shares outstanding equals shares issued minus shares held in treasury and other adjustments, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Equity impact of cash dividends declared by an entity during the period for all classes of stock (common, preferred, etc.). This element includes paid and unpaid dividends declared during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Change in the balance sheet adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity for the period being reported, net of tax. If an entity's functional currency is a foreign currency, translation adjustments result from the process of translating that entity's financial statements into the reporting currency. Includes gain (loss) on foreign currency forward exchange contracts. Includes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. Includes the gain (loss) on a derivative instrument or nonderivative financial instrument that may give rise to a foreign currency transaction gain (loss) and that have been designated and have qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares issued during the period as a result of the conversion of convertible securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross value of stock issued during the period upon the conversion of convertible securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Value of stock (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of stock value of such awards forfeited. Stock issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares that have been repurchased during the period and are being held in treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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