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Shareholders' Equity - Additional Information (Detail)	6 Months Ended		1 Months Ended					1 Months Ended					12 Months Ended
	Jun. 30, 2012 USD ($)	Jun. 30, 2011 USD ($)	Mar. 29, 2011 Settlement Agreement	Nov. 10, 2010 Settlement Agreement	Oct. 31, 2010 Settlement Agreement USD ($)	Sep. 27, 2010 Settlement Agreement USD ($)	Sep. 27, 2010 Settlement Agreement Maximum	Dec. 31, 2011 Xi'an TCH USD ($)	Nov. 22, 2011 Xi'an TCH USD ($)	Jun. 29, 2010 Xi'an TCH USD ($)	Jun. 29, 2010 Xi'an TCH CNY	Jan. 29, 2010 Xi'an TCH CNY	Dec. 31, 2011 Xi'an TCH USD ($)
Stockholders Equity Note [Line Items]
Aggregate agreed amount to pay to acquire asset										$ 14,705,900	100,000,000
Aggregate agreed amount to pay to acquire asset, in cash											20,000,000	20,000,000
Aggregate agreed amount to pay to acquire asset, in shares								11,780,000			80,000,000	80,000,000
Number of shares approved for issuance to acquire set of biomass systems									2,941,176				2,941,176
Shares issued for the purchase of assets, price per share									$ 4
Exchange rate between U.S. Dollar and Chinese RMB in connection with stock issuance									6.8	6.8	6.8
Gain from settlement of debt in shares								8,250,000					8,300,000
Fair value of shares								3,529,411
Shares issued to acquire asset									2,941,176
Common stock issuable (in shares)						170,000	520,000
Common stock issuable, price per share						$ 1.23
Common stock issued (in shares)						350,000
Consulting and investor relation's services starting date						Nov. 01, 2010
Consulting and investor relation's services ending date						Feb. 28, 2011
Proceed from issuance of shares					430,500
Stock compensation expense	$ 112,814	$ 1,445,327			$ 602,000
Legal matter dismissal date				Nov. 10, 2010
Number of shares, which had been issued and delivered to an escrow agent, returned and canceled			150,000

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