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Intangible Assets (Detail) | 3 Months Ended | 9 Months Ended | 12 Months Ended | 9 Months Ended | 12 Months Ended |  | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2012 USD ($) | Sep. 30, 2011 USD ($) | Sep. 30, 2012 USD ($) | Sep. 30, 2012 CNY | Sep. 30, 2011 USD ($) | Dec. 31, 2011 USD ($) | Dec. 31, 2010 USD ($) | Sep. 30, 2012 Annual Fee Per MU [Member] USD ($) | Dec. 31, 2011 Customer Relationships [Member] USD ($) | Dec. 31, 2011 Trademarks [Member] | Sep. 30, 2012 Land Use Right Acquired February 28, 2012 [Member] USD ($) | Sep. 30, 2012 Customer Relationships [Member] | Sep. 30, 2012 Trademarks [Member] | Dec. 31, 2011 Trademarks [Member] USD ($)
Finite-Lived Intangible Asset, Useful Life |  |  | 50 years | 50 years |  | 50 years |  |  | 5 years | 10 years |  | 5 years | 10 years |
Finite-Lived Intangible Assets, Amortization Method |  |  | straight-line basis for 50 years | straight-line basis for 50 years |  | straight-line basis for 50 years |  |  |  |  |  |  |  |
Other Finite-Lived Intangible Assets, Gross |  |  |  | 3,400,000 |  |  |  |  | $ 50,000 |  | $ 536,193 |  |  |
Annual fee for land fill on land use rights |  |  | 333,000 | 2,100,000 |  |  |  | 240 |  |  |  |  |  |
Annual land filling fee, term |  |  | 60 | 60 |  |  |  |  |  |  |  |  |  |
Land filling fee, increase, percentage |  |  | 5.00% | 5.00% |  |  |  |  |  |  |  |  |  |
Number of years each annual land filling fee will increase |  |  | 5 |  |  |  |  |  |  |  |  |  |  |
Number of trademarks acquired |  |  | 2 | 2 |  |  |  |  |  | 2 |  |  |  |
Amortization of Intangible Assets | 10,532 | 5,311 | 39,845 |  | 10,823 | 21,164 | 10,652 |  |  |  |  |  |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Two | 50,400 |  | 50,400 |  |  | 41,200 |  |  |  |  |  |  |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Three | 50,400 |  | 50,400 |  |  | 41,200 |  |  |  |  |  |  |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Four | 50,400 |  | 50,400 |  |  | 41,200 |  |  |  |  |  |  |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Five | 49,552 |  | 49,552 |  |  | 41,200 |  |  |  |  |  |  |  |
Finite-Lived Intangible Assets, Amortization Expense, after Year Five | 40,385 |  | 40,385 |  |  | 40,300 |  |  |  |  |  |  |  |
Payments to Acquire Intangible Assets |  |  | $ 538,230 |  | $ 200,000 | $ 200,000 | $ 0 |  | $ 200,000 |  |  |  |  | $ 200,000

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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- Definition The amortization method of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar either by their nature or by their use in the operations of a company. The straight-line method is the preferred amortization method, unless another method better reflects the pattern in which the asset is consumed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 12, 13, 14 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 35 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=7658317&loc=d3e15372-109273 + Details
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- Definition Gross carrying amount before accumulated amortization as of the balance sheet date of intangible assets not otherwise specified in the taxonomy having a reasonably expected period of economic benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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- Definition The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3213-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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