XML 42 R30.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Shares Issued for Equity Financing and Stock Compensation (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2022
Stockholders' Equity Note [Abstract] |
Schedule of activities of warrants |
|  | Number of Warrants |  |  | Average Exercise Price (post-reverse stock split price) |  |  | Weighted Average Remaining Contractual Term in Years |
Outstanding at January 1, 2022 |  |  | 30,411 |  |  | $ | 14.0 |  |  |  | 2.21 |
Exercisable at January 1, 2022 |  |  | 30,411 |  |  | $ | 14.0 |  |  |  | 2.21 |
Granted |  |  | - |  |  |  | - |  |  |  | - |
Exchanged |  |  | - |  |  |  | - |  |  |  | - |
Forfeited |  |  | - |  |  |  | - |  |  |  | - |
Expired |  |  | - |  |  |  | - |  |  |  | - |
Outstanding at March 31, 2022 |  |  | 30,411 |  |  | $ | 14.0 |  |  |  | 1.96 |
Exercisable at March 31, 2022 |  |  | 30,411 |  |  | $ | 14.0 |  |  |  | 1.96 |

X
- Definition Schedule of warrant activity. + References No definition available. + Details
Name: | creg_ScheduleOfShareBasedCompensationStockWarrantsActivityTableTextBlock
Namespace Prefix: | creg_
Data Type: | dtr:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_StockholdersEquityNoteAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration