Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.

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A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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Income Tax (Details Textual) (USD $)	3 Months Ended		12 Months Ended
Income Tax (Details Textual) (USD $)	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Tax (Textual)
Income tax expense	$ 32,099	$ 116,696
Statutory income tax rate in PRC	25.00%
Effective tax rate, reduction in rate				12.50%	12.50%	12.50%
Effective income tax rate, reduced rate applicable			15.00%
Income tax payable	$ 1,849,844		$ 1,842,139