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Loans (Details Textual) |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |  |  |  |
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Oct. 14, 2019 | Jun. 04, 2018 | Jun. 28, 2020 | Mar. 31, 2020 | Jun. 25, 2019 | Jan. 31, 2019 | Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($) | Dec. 31, 2019 USD ($) | Dec. 10, 2020 USD ($) | Dec. 10, 2020 CNY (¥) | May 31, 2020 USD ($) | May 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥) | Dec. 30, 2019 USD ($) | Dec. 30, 2019 CNY (¥) | Oct. 15, 2019 USD ($) | May 21, 2019 USD ($) | May 21, 2019 CNY (¥) | Mar. 07, 2019 USD ($) | Mar. 07, 2019 CNY (¥) | Nov. 30, 2018 USD ($) | Nov. 30, 2018 CNY (¥) | Aug. 31, 2018 USD ($) | Aug. 31, 2018 CNY (¥) | Aug. 22, 2018 USD ($) | Aug. 22, 2018 CNY (¥) | Sep. 30, 2015
Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank acceptances bills |  |  |  |  |  |  | $ 6,482,637 |  | $ 6,482,637 |  | $ 3,915,094 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00%
Interest |  |  |  |  |  |  | 402,268 | $ 485,179 | 1,190,629 | $ 1,633,731 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, description | The Company entered into a cancellation agreement with Mr. Shangdong Liu, Ms. Lijuan Wang and Mr. Ping Shen (the creditors). Pursuant to the terms of the cancellation agreement, Mr. Shangdong Liu, Ms. Lijuan Wang and Mr. Ping Shen agreed to convert the earnest money in exchange for 528,053, 528,053 and 528,053 shares of common stock of the Company, respectively, at an exchange price of $0.6 per share. Upon receipt of the shares, the creditors released the Company from any claims, demands and other obligations relating to the earnest money. The cancellation agreement contains customary representations and warranties of the creditors. The creditors do not have registration rights with respect to the shares. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related party description |  |  |  | The Company obtained additional one-year term facilities from Jilin Province Trust Co. Ltd with a maximum amount of RMB40.0 million (approximately $5.9 million), which was secured by land use rights and buildings of Eodos Liga Energy Co., Ltd. Under the facilities, the Company borrowed RMB24.2 million ($3.6 million) on March 13, 2020, bearing annual interest of 13.5%. | The Company entered into a loan agreement with Mr. Shulin Yu, an unrelated party, to loan RMB3.6 million (approximately $0.5 million) for a term of one year, bearing annual interest of 10% which was guaranteed by Mr. Yunfei Li (the Company's CEO) and Mr. Wenwu Wang (the Company's former CFO). On June 22, 2020, the Company and Mr. Shulin Yu entered into a supplemental agreement to extend the loan for one year to June 24, 2021. As of September 30, 2020, the Company borrowed RMB3.6 million (approximately $0.5 million). | The Company obtained one-year term facilities from Jilin Province Trust Co. Ltd. with a maximum amount of RMB40.0 million (approximately $5.9 million), which was secured by land use rights and buildings of Eodos Liga Energy Co., Ltd. Under the facilities, the Company borrowed a total of RMB39.6 million ($5.7 million) in 2019, bearing annual interest from 11.3% to 11.6%. The Company fully repaid the loan principal and accrued interest in March 2020. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment agreements description |  |  |  |  |  |  |  |  |  |  | The Company returned earnest money of $949,317 (approximately RMB6.7 million) to these investors. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Remained outstanding value |  |  |  |  |  |  |  |  | 88,888 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unutilized committed facilities |  |  |  |  |  |  | 7,100,000 |  | 7,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Suzhou Zhengyuanwei Needle Ce C., Ltd [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, description |  |  |  |  |  |  |  |  |  |  | The Company entered into a short term loan agreement with Suzhou Zhengyuanwei Needle Ce Co., Ltd, an unrelated party to loan RMB0.6 million (approximately $0.1 million), bearing annual interest rate of 12%. As of September 30, 2020, loan amount of RMB0.5 million ($73,638) remained outstanding. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
China Everbright Bank Dalian Branch [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  |  | 2,400,000 |  | 2,400,000 |  | $ 5,900,000 |  |  | $ 2,400,000 |  |  | $ 5,900,000 |  | $ 4,120,000 |  |  |  |  | $ 14,700,000 |  | $ 8,800,000 |  | $ 14,700,000 |  |
Long-term Line of Credit |  |  |  |  |  |  | 2,400,000 |  | 2,400,000 |  |  |  |  | 2,400,000 |  |  |  |  | $ 4,120,000 |  |  |  |  | $ 7,400,000 |  | $ 8,800,000 |  |  |  |
Bank acceptances bills |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 14,240,000 |  |  |  |  |  |  |  |
Debt instrument discount rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.30% |  |  |  |  |  |  | 4.00% | 4.00% |  |  |
Loans, description |  | The Company obtained banking facilities from China Everbright Bank Dalian Branch with a maximum amount of RMB200 million (approximately $29.5 million) with the term from June 12, 2018 to June 10, 2021, bearing interest at 130% of benchmark rate of the People's Bank of China ("PBOC") for three-year long-term loans, at current rate 6.175% per annum. The loans are repayable in six installments of RMB0.8 million ($0.12 million) on December 10, 2018, RMB24.3 million ($3.58 million) on June 10, 2019, RMB0.8 million ($0.12 million) on December 10, 2019, RMB74.7 million ($11.0 million) on June 10, 2020, RMB0.8 million ($0.12 million) on December 10, 2020 and RMB66.3 million ($9.8 million) on June 10, 2021. Under the facilities, the Company borrowed RMB140.7 million (approximately $20.7 million) as of September 30, 2020. The facilities were secured by the Company's land use rights, buildings, machinery and equipment. The Company repaid the bank loan of RMB0.8 million ($0.12 million), RMB24.3 million ($3.58 million), RMB0.8 million ($0.12 million) and RMB1.09 million ($0.16 million) in December 2018, June 2019, December 2019 and June 2020 respectively. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Supplemental agreement description |  |  | The remaining RMB141.8 million (approximately $20.88 million) loans are repayable in eight instalments consisting of RMB1.09 million ($0.16 million) on June 10, 2020, RMB 1 million ($0.15 million) on December 10, 2020, RMB2 million ($0.29 million) on January 10, 2021, RMB2 million ($0.29 million) on February 10, 2021, RMB2 million ($0.29 million) on March 10, 2021, RMB2 million ($0.29 million) on April 10, 2021, RMB2 million ($0.29 million) on May 10, 2021, and RMB129.7 million ($19.1 million) on June 10, 2021, respectively. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bearing interest |  |  |  |  |  |  |  |  |  |  | 5.655% |  |  |  |  | 5.655% |  |  |  |  |  |  |  |  |  |  |  |  |  |
China Everbright Bank Dalian Branch [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term Line of Credit |  |  |  |  |  |  |  |  |  |  |  | $ 2,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
China Everbright Bank Dalian Branch [Member] | Mr. Yunfei Li [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  |  |  |  |  |  |  |  | 15.00% |  |  |  |  | 15.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
China Everbright Bank Dalian Branch [Member] | CBAK Power [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  | 100.00% |  |  |  |  |  |  |  | 100.00% | 100.00% |  |  |  |  |
Debt instrument discount rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.00% | 4.00% |  |  |  |  |
China Everbright Bank Dalian Branch [Member] | RMB [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  |  | 16,100,000 |  | 16,100,000 |  |  |  |  | $ 16,100,000 |  | ¥ 39,900,000 |  | ¥ 39,900,000 | $ 28,000,000 |  |  |  |  |  | ¥ 100,000,000 |  | ¥ 60,000,000 |  | ¥ 100,000,000 |
Long-term Line of Credit |  |  |  |  |  |  | $ 16,100,000 |  | $ 16,100,000 |  |  |  |  |  | ¥ 16,100,000 |  |  |  | $ 28,000,000 |  |  |  |  |  | ¥ 50,000,000 |  |  |  |  |
Bank acceptances bills | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 28,800,000 |  |  |  |  |  |  |
China Everbright Bank Dalian Branch [Member] | RMB [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term Line of Credit | ¥ |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 16,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Industrial Bank Co., Ltd. Dalian Branch [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank acceptances bills |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 200,000 |  |  |  |  |  |  |  |  |  |
Bills receivable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 200,000 |  |  |  |  |  |  |  |  |  |
Industrial Bank Co., Ltd. Dalian Branch [Member] | RMB [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank acceptances bills | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 1,500,000 |  |  |  |  |  |  |  |  |
Bills receivable | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 1,500,000 |  |  |  |  |  |  |  |  |

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- Definition Carrying amount as of the balance sheet date of drafts and bills of exchange that have been accepted by the reporting bank, or by others for its own account, as its liability to holders of the drafts. + 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 210.9-03.14) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: 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(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: 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(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: 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(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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