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Organization and Description of Business - Additional Information (Detail) |  | 1 Months Ended | 12 Months Ended | 1 Months Ended |  | 1 Months Ended |  | 1 Months Ended |  | 1 Months Ended |  | 1 Months Ended | 6 Months Ended | 1 Months Ended | 12 Months Ended
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Jun. 13, 2012 Scenario, Previously Reported Huahong USD ($) | Jun. 13, 2012 Restatement Adjustment Huahong USD ($) | Dec. 31, 2011 Xi'an TCH USD ($) | Nov. 22, 2011 Xi'an TCH | Jun. 29, 2010 Xi'an TCH USD ($) | Jun. 29, 2010 Xi'an TCH CNY | Jan. 29, 2010 Xi'an TCH CNY | Jan. 20, 2010 Xi'an TCH MW | Dec. 31, 2011 Xi'an TCH USD ($) | Jan. 20, 2010 Xi'an TCH Thermal Power Generation Systems USD ($) | Jan. 20, 2010 Xi'an TCH Thermal Power Generation Systems CNY | Jun. 29, 2010 Xi'an TCH Biomass Power Generation System USD ($) | Jan. 29, 2010 Xi'an TCH Biomass Power Generation System CNY | Mar. 15, 2011 Pingshan County Shengda USD ($) | Mar. 15, 2011 Pingshan County Shengda CNY | Sep. 28, 2011 Shanghai TCH signed with Shengwei Group USD ($) MW | Sep. 28, 2011 Shanghai TCH signed with Shengwei Group CNY | Nov. 30, 2007 Shanghai TCH signed with Shengwei Group MW Entity | Jun. 30, 2012 Shanghai TCH signed with Shengwei Group Xi'an TCH USD ($) | Jun. 30, 2012 Shanghai TCH signed with Shengwei Group Xi'an TCH CNY | Nov. 30, 2007 Shanghai TCH signed with Shengwei Group Tong Chuan ton | Nov. 30, 2007 Shanghai TCH signed with Shengwei Group Jin Yang ton | Apr. 14, 2009 Joint venture with Erdos Metallurgy Co., Ltd USD ($) | Apr. 14, 2009 Joint venture with Erdos Metallurgy Co., Ltd CNY | Apr. 14, 2009 Joint venture with Erdos Metallurgy Co., Ltd Initial Payment USD ($) | Apr. 14, 2009 Joint venture with Erdos Metallurgy Co., Ltd Initial Payment CNY | Apr. 14, 2009 Joint venture with Erdos Metallurgy Co., Ltd Erdos TCH | Jun. 30, 2012 Joint venture with Erdos Metallurgy Co., Ltd Erdos TCH | Apr. 14, 2009 Joint venture with Erdos Metallurgy Co., Ltd Erdos TCH After Modification | Apr. 14, 2009 Joint venture with Erdos Metallurgy Co., Ltd Xi'an TCH | Jun. 30, 2012 Joint venture with Erdos Metallurgy Co., Ltd Xi'an TCH | Apr. 14, 2009 Joint venture with Erdos Metallurgy Co., Ltd Xi'an TCH After Modification | Apr. 30, 2009 Erdos TCH signed with Metallurgy USD ($) MW Phase | Apr. 30, 2009 Erdos TCH signed with Metallurgy CNY MW Phase | Apr. 18, 2009 Erdos TCH signed with Metallurgy USD ($) Phase MW | Apr. 18, 2009 Erdos TCH signed with Metallurgy CNY | Apr. 30, 2009 Erdos TCH signed with Metallurgy Maximum MW | Apr. 18, 2009 Erdos TCH signed with Metallurgy Maximum MW | Apr. 30, 2009 Erdos TCH signed with Metallurgy steam per hour ton | Mar. 31, 2010 Erdos TCH signed with Metallurgy Phase I | Apr. 30, 2009 Erdos TCH signed with Metallurgy Phase I MW Property | Apr. 18, 2009 Erdos TCH signed with Metallurgy Phase I MW Property | Apr. 30, 2009 Erdos TCH signed with Metallurgy Phase II MW Property | Apr. 18, 2009 Erdos TCH signed with Metallurgy Phase II MW Property | Apr. 30, 2009 Erdos TCH signed with Metallurgy Phase III MW Property | Apr. 18, 2009 Erdos TCH signed with Metallurgy Phase III MW Property | Jun. 30, 2012 Erdos TCH signed with Metallurgy Phase III | Apr. 18, 2009 Erdos TCH signed with Metallurgy per hour steam per hour ton | Dec. 10, 2010 Erdos TCH with Xi'an Huaxin Energy Tech Co.Ltd Phase II | Dec. 10, 2010 Erdos TCH with Xi'an Huaxin Energy Tech Co.Ltd Phase II Before Amendment USD ($) | Dec. 10, 2010 Erdos TCH with Xi'an Huaxin Energy Tech Co.Ltd Phase II Before Amendment CNY | Dec. 10, 2010 Erdos TCH with Xi'an Huaxin Energy Tech Co.Ltd Phase II After Amendment USD ($) | Dec. 10, 2010 Erdos TCH with Xi'an Huaxin Energy Tech Co.Ltd Phase II After Amendment CNY | Sep. 30, 2009 Xi'an TCH with Shenmu County Jiujiang Trading Co.Ltd. Year MW Property | Jan. 29, 2010 Xi'an TCH with PuCheng XinHengYuan Biomass Power Generation Co., Ltd Year MW | Jan. 29, 2010 Xi'an TCH with PuCheng XinHengYuan Biomass Power Generation Co., Ltd Minimum USD ($) | Jan. 29, 2010 Xi'an TCH with PuCheng XinHengYuan Biomass Power Generation Co., Ltd Minimum CNY | Sep. 30, 2010 Xi'an TCH with Zhongbao Binhai Nickel Co., Ltd USD ($) MW ton | Sep. 30, 2010 Xi'an TCH with Zhongbao Binhai Nickel Co., Ltd CNY ton | Sep. 30, 2010 Xi'an TCH with Zhongbao Binhai Nickel Co., Ltd Xi'an TCH | Sep. 30, 2010 Xi'an TCH with Zhongbao Binhai Nickel Co., Ltd Zhongbao Binhai Nickel Co Ltd. | May 25, 2011 Xi'an TCH Letter of Intent with ShenQiu YuNeng Thermal Power Co., Ltd USD ($) | May 25, 2011 Xi'an TCH Letter of Intent with ShenQiu YuNeng Thermal Power Co., Ltd CNY | Jun. 30, 2012 Lease Agreements Xi'an TCH USD ($) Year | Jun. 30, 2012 Lease Agreements Xi'an TCH CNY | Dec. 31, 2011 Repurchase Agreement Xi'an TCH with Shenmu USD ($) Installment MW | Dec. 31, 2011 Repurchase Agreement Xi'an TCH with Shenmu CNY Installment MW
Organization and Nature of Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capacity of plant |  |  |  |  |  |  |  | 12 |  |  |  |  |  |  |  | 12 | 12 | 12 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 70 | 70 | 70 | 70 | 120 | 120 | 30 |  | 18 | 18 | 27 | 27 | 25 | 25 |  | 30 |  |  |  |  |  | 6 | 12 |  |  | 7 | 7 |  |  |  |  |  |  | 18 | 18
Number of manufacturing lines |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capacity per day |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,500 | 5,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of joint ventures |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20 years | 20 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated total investment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 79,000,000 | 500,000,000 | $ 17,550,000 | 120,000,000 |  |  |  |  |  |  | $ 79,000,000 | 500,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contribution percentage in total investment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7.00% |  |  | 93.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Profit distribution percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20.00% |  | 40.00% | 80.00% |  | 60.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 40.00% | 60.00% |  |  |  |  |  |
Construction costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 79,000,000 | 500,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 37,400,000 | 248,000,000 | 28,100,000 | 186,000,000 |  |  |  |  | 7,800,000 | 55,000,000 |  |  | 3,500,000 | 22,500,000 |  |  |  |
Number of phases of construction of power generation system |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 | 3 | 3 | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of power generation system |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 | 2 | 3 | 3 | 1 | 1 |  |  |  |  |  |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |
Completion date of project |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | March of 2010 |  | During the first quarter of 2010 |  | Fourth quarter of 2010 and first quarter of 2011 |  |  | End of 2012 |  | In the first quarter of 2011 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Terms of contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 |  |  |  |  |  |  |  |  |  |  |  |  |
Energy saving service fees to be received within three working days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,080,000 | 19,440,000
Repurchase Agreement Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 18,750,000 | 120,000,000
Number of Installment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 | 3
Aggregate agreed amount to pay to acquire asset |  |  |  |  | 14,705,900 | 100,000,000 |  |  |  | 2,200,000 | 15,000,000 | 14,705,900 | 100,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreed amount to pay to acquire set of biomass systems, cash |  |  |  |  |  | 20,000,000 | 20,000,000 |  |  |  |  |  |  |  |  |  |  |  | 7,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreed amount to pay to acquire set of biomass systems, in shares |  |  | 11,780,000 |  |  | 80,000,000 | 80,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exchange rate between U.S. Dollar and Chinese RMB in connection with stock issuance |  |  |  | 6.8 | 6.8 | 6.8 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares approved for issuance to acquire set of biomass systems |  |  |  | 2,941,176 |  |  |  |  | 2,941,176 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on settlement of the debt |  |  | 8,250,000 |  |  |  |  |  | 8,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Leasing fees |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 279,400 | 1,900,000 |  |  |  |  |  |  |  |  |  |
Lease period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15 |  |  |  |  |  |  |  |  | 11 | 11 |  |
Annual capacity of plant |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 80,000 | 80,000 |  |  |  |  |  |  |  |
Contract term |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9 years | 9 years |  |  |  |  |  |  |  |
Cash contribution to Shengda |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,559,271 | 30,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary incorporation date |  |  |  |  |  |  |  |  |  |  |  |  |  | Mar. 15, 2011 | Mar. 15, 2011 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liquidation date |  |  |  |  |  |  |  |  |  |  |  |  |  | Jul. 05, 2012 | Jul. 05, 2012 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Project commencement date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | June 2011 | June 2011 |  |  |  |
Construction costs Incurred |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,937,500 | 70,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Construction costs Incurred and Paid |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,012,000 | 57,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note issued to acquire biomass power generation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes payable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Monthly rent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 286,000 | 1,800,000 |  |
Investment amount | 10,000,000 | 5,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Registered capital | $ 10,000,000 | $ 2,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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