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Income Taxes - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended		6 Months Ended			12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended
	Jun. 30, 2012 Year	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 ShangHai TCH	Dec. 31, 2011 ShangHai TCH	Jun. 30, 2012 Xi'an TCH	Dec. 31, 2011 Xi'an TCH	Jun. 30, 2012 Xingtai Huaxin	Dec. 31, 2011 Xingtai Huaxin	Jun. 30, 2012 Huahong	Dec. 31, 2011 Huahong	Jun. 30, 2012 Erdos TCH	Dec. 31, 2011 Erdos TCH	Jun. 30, 2012 Pingshan County Shengda	Dec. 31, 2011 Pingshan County Shengda	Jun. 30, 2012 CHINA
Income Taxes [Line Items]
Effective income tax rate		25.10%	16.90%	21.20%	19.60%	25.00%	24.00%	15.00%	15.00%	25.00%	25.00%	25.00%	25.00%	25.00%	25.00%	25.00%	25.00%	25.00%
Income Tax Expense		$ 225,417		$ 418,196
Earning per share		$ 0.005		$ 0.010
Net operating losses	$ 9,600,000	$ 9,600,000		$ 9,600,000
Deferred tax asset valuation allowance percentage	100.00%	100.00%		100.00%
Operating losses carry forward expiration period	20

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- Definition

Decrease in Earnings Per Share Basic and Diluted from Change in Amount of Contingent Consideration Liability Net of Tax

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- Definition

Deferred Tax Assets, Valuation Allowance, Percentage

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 25

-Paragraph 20

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-Number 109

-Paragraph 43, 289

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- Definition

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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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

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-Number 210

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The increase (decrease) during the reporting period in the amounts payable to taxing authorities for taxes that are based on the reporting entity's earnings, net of amounts receivable from taxing authorities for refunds of overpayments or recoveries of income taxes, and in deferred and other tax liabilities and assets.

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