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Property, Plant and Equipment (Details Textual) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2013 T | Mar. 31, 2012 | Dec. 31, 2012
Property, Plant and Equipment (Textual) |  |  |
Property plant and equipment pledged for long term loan | $ 9,025,899 |  | $ 9,316,645
Production capacity of manufacturing equipment PM 8 (per year) | 15,000 |  |
Long term loan of third party | 1,515,974 |  | 1,505,881
Long term loan of third party expiration date | Feb. 26, 2014 |  | Feb. 26, 2014
Depreciation and amortization | 1,932,853 | 1,959,302 | 1,959,302
Land use rights [Member] |  |  |
Property, Plant and Equipment (Textual) |  |  |
Lease term | 50 years |  |
Number of land use rights | 2 |  |
Property plant and equipment pledged for long term loan | $ 7,431,490 |  | $ 7,419,614
Land use right one [Member] |  |  |
Property, Plant and Equipment (Textual) |  |  |
Lease expiration year | 2053 |  |
Land use right two [Member] |  |  |
Property, Plant and Equipment (Textual) |  |  |
Lease expiration year | 2061 |  |

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- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. + References Reference 1: 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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 -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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