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REFUNDABLE DEPOSIT FROM CUSTOMERS FOR SYSTEMS LEASING (Narrative) (Details)
Dec. 31, 2014
USD ($)
Dec. 31, 2014
CNY
Dec. 31, 2014
Pucheng, Shenqiu and Yida systems [Member]
USD ($)
Dec. 31, 2013
Pucheng, Shenqiu and Yida systems [Member]
USD ($)
Security Deposit $ 338,079us-gaap_SecurityDeposit 2,130,000us-gaap_SecurityDeposit $ 1,650,597us-gaap_SecurityDeposit
/ us-gaap_SaleLeasebackTransactionDescriptionAxis
= creg_PuchengShenqiuAndYidaSystemsMember
$ 1,164,526us-gaap_SecurityDeposit
/ us-gaap_SaleLeasebackTransactionDescriptionAxis
= creg_PuchengShenqiuAndYidaSystemsMember