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Income (Loss) Per Share (Details) - shares | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Earnings Per Share [Abstract] |  |  |  |
Vested restricted shares | 22,501 | 5,834 | 22,501 | 5,834
Unvested restricted shares |  | 1,154,002 |  | 1,154,002
Purchase of shares | 15,797,479 |  | 15,797,479 |

X
- Definition Number of shares purchase. + References No definition available. + Details
Name: | cbat_PurchaseShares
Namespace Prefix: | cbat_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Unvested restricted shares. + References No definition available. + Details
Name: | cbat_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsUnvestedAndExpectedToUnvestOutstandingNumber1
Namespace Prefix: | cbat_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Vested restricted shares granted. + References No definition available. + Details
Name: | cbat_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber1
Namespace Prefix: | cbat_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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