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Principal Activities, Basis of Presentation and Organization (Narrative) (Details) | 12 Months Ended
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Sep. 30, 2014 USD ($) | Sep. 30, 2014 CNY
Principal Activities, Basis Of Presentation And Organization 1 | 1,720,087 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerowzZeroEightzhsFiveZerorLOne | 1,720,087 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerowzZeroEightzhsFiveZerorLOne
Principal Activities, Basis Of Presentation And Organization 2 | $ 17,000,000 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerowNbNineDOnedfnqZeroD |
Principal Activities, Basis Of Presentation And Organization 3 | 435,910 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerovOnezksCdQkpgy | 435,910 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerovOnezksCdQkpgy
Principal Activities, Basis Of Presentation And Organization 4 | 50.00%cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroybQJSixyEightQOnePpG | 50.00%cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroybQJSixyEightQOnePpG
Principal Activities, Basis Of Presentation And Organization 5 | 12,000,000 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerozMCFwxnXbclV |
Principal Activities, Basis Of Presentation And Organization 6 | 50.00%cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroFiveFourkOneCQVkcpkw | 50.00%cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroFiveFourkOneCQVkcpkw
Principal Activities, Basis Of Presentation And Organization 7 | 27,000,000 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroNbwpBcfsTJwk |
Principal Activities, Basis Of Presentation And Organization 8 | 435,910 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroKcZeroSixThreewzFourBZmw | 435,910 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroKcZeroSixThreewzFourBZmw
Principal Activities, Basis Of Presentation And Organization 9 | 50.00%cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroTFGJQNineTLyKVK | 50.00%cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroTFGJQNineTLyKVK
Principal Activities, Basis Of Presentation And Organization 10 | 50.00%cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroVRNinelgFivedqksDThree | 50.00%cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroVRNinelgFivedqksDThree
Principal Activities, Basis Of Presentation And Organization 11 | 217,955 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroVDgHcwOneTZeroMRt | 217,955 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroVDgHcwOneTZeroMRt
Principal Activities, Basis Of Presentation And Organization 12 | 217,955 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerohhcTSevenJlTgJThreey | 217,955 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerohhcTSevenJlTgJThreey
Principal Activities, Basis Of Presentation And Organization 13 | 7,955,358 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroyvHMJgbvDqdm |
Principal Activities, Basis Of Presentation And Organization 14 | 217,955 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroTwoQGCKRnrgmpt | 217,955 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroTwoQGCKRnrgmpt
Principal Activities, Basis Of Presentation And Organization 15 | 50.00%cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerotLwFwNBBSixDNinet | 50.00%cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerotLwFwNBBSixDNinet
Principal Activities, Basis Of Presentation And Organization 16 | 73,749 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroNCzDXWcklThreevw | 73,749 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroNCzDXWcklThreevw
Principal Activities, Basis Of Presentation And Organization 18 | 217,955 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerozQBVPVSHNinerQf | 217,955 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerozQBVPVSHNinerQf
Principal Activities, Basis Of Presentation And Organization 19 | 217,955 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroThreefcEightJgTwowSixBFourw | 217,955 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroThreefcEightJgTwowSixBFourw
Principal Activities, Basis Of Presentation And Organization 20 | 73,749 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerobwhVCTLKSOneKSix | 73,749 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerobwhVCTLKSOneKSix
Principal Activities, Basis Of Presentation And Organization 21 | 1.0 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroPsOneTwoyltFourDDXThree | 1.0 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroPsOneTwoyltFourDDXThree
Principal Activities, Basis Of Presentation And Organization 23 | 30,000,000 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerostKtNyhZtFML |
Principal Activities, Basis Of Presentation And Organization 24 | 6,000,000 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroPhThreeThreeSixCOneSevenSFdJ |
Principal Activities, Basis Of Presentation And Organization 25 | 20.00%cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroEighttFivetTTQZqhTc | 20.00%cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroEighttFivetTTQZqhTc
Principal Activities, Basis Of Presentation And Organization 26 | 5,000,000 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroyOneTCOnenFourmGOnelT |
Principal Activities, Basis Of Presentation And Organization 27 | 83,800,000 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroLLScGwBRNineyhS |
Principal Activities, Basis Of Presentation And Organization 28 |  | 520,000,000 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroEightJWZerorvJSdpgf
Principal Activities, Basis Of Presentation And Organization 29 | 20.00%cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroxKCyBnFivevXwVQ | 20.00%cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroxKCyBnFivevXwVQ
Principal Activities, Basis Of Presentation And Organization 30 | 100.00%cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroMxgcWCpXpcJg | 100.00%cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroMxgcWCpXpcJg
Principal Activities, Basis Of Presentation And Organization 31 | 83,800,000 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerovPvMQZeroyqLPCp |
Principal Activities, Basis Of Presentation And Organization 32 |  | 520,000,000 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeropLVvcOneXQhlpC
Principal Activities, Basis Of Presentation And Organization 33 | 61,300,000 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroXblqRFourSLQZeroNineW |
Principal Activities, Basis Of Presentation And Organization 58 | 17,844,674 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroKVbgCQThreeTwoqZeroNR |
Principal Activities, Basis Of Presentation And Organization 59 | 876,240 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerohSevenThreegOneOnezgQSrs |
Principal Activities, Basis Of Presentation And Organization 60 | 15,131,854 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerobqdLEightfzptQPT |
Principal Activities, Basis Of Presentation And Organization 61 | 10,969,796 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroLOnekMLMFourSevengTyS |
Principal Activities, Basis Of Presentation And Organization 62 | 4,268,397 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroNCHSlXNinewZnrL |
Principal Activities, Basis Of Presentation And Organization 63 | 6,107,084 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroZgRThreeFiveygnNnSixr |
Principal Activities, Basis Of Presentation And Organization 64 | 594,315 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroSevenZeroRSixFivevmZerokTEightq |
Principal Activities, Basis Of Presentation And Organization 65 | 3,295,456 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroJKFourrwQnNinermRL |
Principal Activities, Basis Of Presentation And Organization 66 | 558,577 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroNzZFThreeCOneBNineThreeSG |
Principal Activities, Basis Of Presentation And Organization 67 | 1,800,000 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroNwSixLXbhdBGNineV |
Principal Activities, Basis Of Presentation And Organization 117 | 63,100,000 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroQZeroKyJSixXDNlnv |
Principal Activities, Basis Of Presentation And Organization 118 | 24,437,131 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroRpPmJXFhZSixThreeR |
Principal Activities, Basis Of Presentation And Organization 119 | 7,520,000 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroZXlEightfNGHrnQZ |
Principal Activities, Basis Of Presentation And Organization 120 |  | 46,150,000 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerozTpddQklbkdt
Principal Activities, Basis Of Presentation And Organization 121 | 4,900,000 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerowmDWOneSevenvBzEightBSix |
Principal Activities, Basis Of Presentation And Organization 122 |  | 30,000,000 cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZerobzMXRXTZxwBFive
Principal Activities, Basis Of Presentation And Organization 123 | 7.80%cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroglThreekTwoXWDTHmF | 7.80%cbak_PrincipalActivitiesBasisOfPresentationAndOrganizationZeroTwoSixFiveZeroZeroglThreekTwoXWDTHmF

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