XML 58 R46.htm IDEA: XBRL DOCUMENT
v3.19.1

Summary of Significant Accounting Policies (Details Textual) |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jan. 04, 2019 USD ($) | Jan. 04, 2019 CNY (¥) | Dec. 29, 2018 USD ($) | Dec. 29, 2018 CNY (¥) | Mar. 31, 2019 USD ($) | Mar. 31, 2019 CNY (¥) | Mar. 31, 2018 USD ($) | Dec. 31, 2018 USD ($)
Summary of Significant Accounting Policies (Textual) |  |  |  |  |  |  |  |
Accounts receivable |  |  |  |  | $ 49,395,722 |  |  | $ 11,755,251
Accounts receivable, description |  |  |  |  | The Company had gross accounts receivable of $52,959,990; of which, $36.69 million was for transferring the ownership of Huayu and Shenqiu Phase I and II systems to Mr. Bai but waiting for completion of transfer Mr. Bai's all the equity shares of his wholly owned company, Xi'an Hanneng, to HYREF; $11.88 million was from the sales of CDQ and a CDQ WHPG system to Zhongtai, and $4.39 million accounts receivable of Erdos TCH for the electricity sold. | The Company had gross accounts receivable of $52,959,990; of which, $36.69 million was for transferring the ownership of Huayu and Shenqiu Phase I and II systems to Mr. Bai but waiting for completion of transfer Mr. Bai's all the equity shares of his wholly owned company, Xi'an Hanneng, to HYREF; $11.88 million was from the sales of CDQ and a CDQ WHPG system to Zhongtai, and $4.39 million accounts receivable of Erdos TCH for the electricity sold. |  |
Interest receivable on sales type leases |  |  |  |  | $ 5,434,301 |  |  | 9,336,140
Asset impairment loss |  |  |  |  | 28,429,789 |  |  |
Bad debt allowance for net investment receivable |  |  |  |  | $ 22,534,192 |  |  | 29,276,658
Description of corporate income tax rate |  |  |  |  | The provisions of the Tax Act that may have significant impact on the Company, including the permanent reduction of the corporate income tax rate from 35% to 21% effective for tax years including or commencing on January 1, 2018. | The provisions of the Tax Act that may have significant impact on the Company, including the permanent reduction of the corporate income tax rate from 35% to 21% effective for tax years including or commencing on January 1, 2018. |  |
U.S. corporate income taxes |  |  |  |  |  |  | 21.00% |
U.S. corporate income taxes for prior |  |  |  |  |  |  | 35.00% |
Bad debt allowance |  |  |  |  | $ 3,496,911 |  |  |
Ownership percentage, description |  |  |  |  | Erdos TCH Energy Saving Development Co., Ltd ("Erdos TCH"), 100% owned by Xi'an TCH (See note 1), 2) Zhonghong, 90% owned by Xi'an TCH and 10% owned by Shanghai TCH, and 3) Zhongxun, 100% owned by Xi'an TCH. | Erdos TCH Energy Saving Development Co., Ltd ("Erdos TCH"), 100% owned by Xi'an TCH (See note 1), 2) Zhonghong, 90% owned by Xi'an TCH and 10% owned by Shanghai TCH, and 3) Zhongxun, 100% owned by Xi'an TCH. |  |
Xuzhou Tian’an [Member] |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |  |  |  |  |  |
Asset impairment loss |  |  |  |  | $ 13,512,592 |  |  |
Fair value of transfered amount |  |  |  |  | 25,580,000 |  |  |
Xuzhou Tian’an [Member] | RMB [Member] |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |  |  |  |  |  |
Fair value of transfered amount | ¥ |  |  |  |  |  | ¥ 172,250,000 |  |
Shenqiu systems [Member] |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |  |  |  |  |  |
Bad debt allowance for net investment receivable |  |  |  |  | 7,274,872 |  |  |
Pucheng systems [Member] |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |  |  |  |  |  |
Bad debt allowance for net investment receivable |  |  |  |  | $ 22,001,786 |  |  |
Xuzhou Huayu [Member] |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |  |  |  |  |  |
Asset impairment loss |  |  |  |  |  |  |  | 6,528,120
Fair value of transfered amount | $ 17,520,000 |  | $ 27,540,000 |  |  |  |  |
Xuzhou Huayu [Member] | RMB [Member] |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |  |  |  |  |  |
Fair value of transfered amount | ¥ |  | ¥ 120,000,000 |  | ¥ 188,639,400 |  |  |  |
Chengli [Member] |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |  |  |  |  |  |
Asset impairment loss |  |  |  |  |  |  |  | $ 8,124,968

X
- Definition Accounts receivable, description. + References No definition available. + Details
Name: | creg_AccountsReceivableDescription
Namespace Prefix: | creg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Allowance for net investment receivable. + References No definition available. + Details
Name: | creg_AllowanceForNetInvestmentReceivable
Namespace Prefix: | creg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | creg_BadDebtAllowance
Namespace Prefix: | creg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The description related to ownership percentage. + References No definition available. + Details
Name: | creg_EquityMethodInvestmentOwnershipPercentageDescription
Namespace Prefix: | creg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value amount of transfer for the period. + References No definition available. + Details
Name: | creg_FairValueTransferAmount
Namespace Prefix: | creg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Interest Receivable On Sales Lease. + References No definition available. + Details
Name: | creg_InterestReceivableOnSalesLease
Namespace Prefix: | creg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition Percentage of U.S. corporate income taxes. + References No definition available. + Details
Name: | creg_UsCorporateIncomeTaxes
Namespace Prefix: | creg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of corporate income taxes prior. + References No definition available. + Details
Name: | creg_UsCorporateIncomeTaxesPrior
Namespace Prefix: | creg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(9)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(5)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_AccountsReceivableNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of gain (loss) from the difference between the sale price or salvage price and the book value of an asset that was sold or retired, and gain (loss) from the write down of assets from their carrying value to fair value. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
Name: | us-gaap_GainLossOnSalesOfAssetsAndAssetImpairmentCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition A brief description of status of the tax examination, significant findings to date, and the entity's position with respect to the findings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319 + Details
Name: | us-gaap_IncomeTaxExaminationDescription
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=creg_XuzhouTiananMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | creg_TypesOfCurrencyAxis=creg_RMBMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=creg_ShenqiuSystemsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=creg_PuchengSystemsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=creg_XuzhouHuayuMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=creg_ChengliMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |