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Summary of Significant Accounting Policies (Tables) | 9 Months Ended | 12 Months Ended
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Sep. 30, 2012 | Dec. 31, 2011
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] | A reconciliation of the January 1, 2012, through September 30, 2012, amount of unrecognized tax benefits excluding interest and penalties ("Gross UTB") is as follows:
|  | Gross UTB |
Beginning Balance - January 1, 2012 |  |  | 3,709,129 |
Increase in unrecorded tax benefits taken in 2012 |  |  | 133,029 |
Exchange rate adjustment – 2012 |  |  | (24,085 | )
Ending Balance – September 30, 2012 |  | $ | 3,818,073 |
| The following table presents a reconciliation of the amount of unrecognized tax benefits excluding interest and penalties (“Gross UTB”) for the years ended December 31, 2011 and 2010:
|  | Gross UTB |
|  | 2011 |  |  | 2010 |
Beginning balance at January 1 |  | $ | 2,189,194 |  |  | $ | 1,346,203 |
Increase in unrecorded tax benefits taken in current year |  |  | 1,373,704 |  |  |  | 771,976 |
Exchange rate adjustment |  |  | 146,231 |  |  |  | 71,015 |
Ending balance at December 31 |  | $ | 3,709,129 |  |  | $ | 2,189,194 |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | The following table presents a reconciliation of basic and diluted earnings per share for the nine and three months ended September 30, 2012 and 2011:
|  | Nine Months Ended |  |  | Three Months Ended |
|  | 2012 |  |  | 2011 |  |  | 2012 |  |  | 2011 |
Net income |  | $ | 3,647,515 |  |  | $ | 3,266,657 |  |  | $ | 1,243,893 |  |  | $ | 1,681,589 |
Weighted average shares outstanding – basic |  |  | 18,460,955 |  |  |  | 13,451,350 |  |  |  | 18,518,089 |  |  |  | 16,431,723 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unexercised warrants |  |  | 191,937 |  |  |  | 70,800 |  |  |  | 191,507 |  |  |  | 210,092 |
Weighted average shares outstanding – diluted |  |  | 18,652,892 |  |  |  | 13,522,150 |  |  |  | 18,709,596 |  |  |  | 16,641,815 |
Earnings (loss) per share – basic |  | $ | 0.20 |  |  | $ | 0.24 |  |  | $ | 0.07 |  |  | $ | 0.10 |
Earnings (loss) per share – diluted |  | $ | 0.20 |  |  | $ | 0.24 |  |  | $ | 0.07 |  |  | $ | 0.10 |
| The following table presents a reconciliation of basic and diluted earnings per share for the years ended December 31, 2011 and 2010:
|  | 2011 |  |  | 2010 |
Net income |  | $ | 5,365,165 |  |  | $ | 4,203,009 |
Weighted average shares outstanding - basic |  |  | 14,506,915 |  |  |  | 9,685,000 |
Effect of dilutive securities: |  |  |  |  |  |  |  |
Unexercised warrants and options |  |  | 190,291 |  |  |  | - |
Weighted average shares outstanding - diluted |  |  | 14,697,206 |  |  |  | 9,685,000 |
Earnings per share - basic |  | $ | 0.37 |  |  | $ | 0.43 |
Earnings per share - diluted |  | $ | 0.37 |  |  | $ | 0.43 |

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- Definition Tabular disclosure of the change in unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 55 -Paragraph 217 -URI http://asc.fasb.org/extlink&oid=21917533&loc=d3e36027-109320 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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