OTHER RECEIVABLES (Narrative) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Advance To Third Party	$ 70	$ 560
Advance To Employees	40	40
Maintenance Cost And Tax Receivable	500	$ 100
Guarantee Deposit	$ 1,470

It represent the value of maintenance cost and tax receivable.

No definition available.

Name:	creg_MaintenanceCostAndTaxReceivable
Namespace Prefix:	creg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant