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SCHEDULE OF STOCK OPTION, ACTIVITY (Details) (USD $)	12 Months Ended
	Sep. 30, 2014 Y
Share-based Compensation Schedule Of Stock Option, Activity 1	$ 328,671cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFiveSevenrfwhDdWLGFiveM
Share-based Compensation Schedule Of Stock Option, Activity 2	14.05cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFiveSTwoDHqfSevenpFThreefW
Share-based Compensation Schedule Of Stock Option, Activity 3	3.7cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFivemZeroFdOnebklwdTf
Share-based Compensation Schedule Of Stock Option, Activity 4	0cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFiveSixkPNdztHFourHtP
Share-based Compensation Schedule Of Stock Option, Activity 5	0cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFiveQsPfFiveyZGEightxHZero
Share-based Compensation Schedule Of Stock Option, Activity 6	0cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFiveyThreeTgSGHhllZeroSix
Share-based Compensation Schedule Of Stock Option, Activity 7	0cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFiveChMDkLfmZerownp
Share-based Compensation Schedule Of Stock Option, Activity 8	(192,111)cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFiverhldOneFThreeLKfbt
Share-based Compensation Schedule Of Stock Option, Activity 9	14.05cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFivewVZeroRnQdLGSbz
Share-based Compensation Schedule Of Stock Option, Activity 10	2.7cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFiveOneBRVOnevJmZGbd
Share-based Compensation Schedule Of Stock Option, Activity 11	136,560cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFivedThreeLTVZFiveDPFivenZero
Share-based Compensation Schedule Of Stock Option, Activity 12	14.05cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFivevQEightOnecThreeWMNlvp
Share-based Compensation Schedule Of Stock Option, Activity 13	2.7cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFivekOneqZTHOneWqhMM
Share-based Compensation Schedule Of Stock Option, Activity 14	0cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFiveMXdfttXdmFourtEight
Share-based Compensation Schedule Of Stock Option, Activity 15	0cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFivehsJmmtsfVNQOne
Share-based Compensation Schedule Of Stock Option, Activity 16	0cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFivettOneRWTbNfPJQ
Share-based Compensation Schedule Of Stock Option, Activity 17	0cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFiveThreeLNhhmGBZeroLrd
Share-based Compensation Schedule Of Stock Option, Activity 18	(132,360)cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFiveZfSevenrXHSyWXpF
Share-based Compensation Schedule Of Stock Option, Activity 19	14.05cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFivevnTwoNbZerovwpMxb
Share-based Compensation Schedule Of Stock Option, Activity 20	1.95cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFiveZTKPTVXNThreehPC
Share-based Compensation Schedule Of Stock Option, Activity 21	4,200cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFivehNcSevenFTZeroXNcXk
Share-based Compensation Schedule Of Stock Option, Activity 22	14.05cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFivemSixTNTFourEightThreeSixrgc
Share-based Compensation Schedule Of Stock Option, Activity 23	1.7cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFiveycPXgsQFhNNinez
Share-based Compensation Schedule Of Stock Option, Activity 24	0cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFivehLEightFiveLgZSixCxMB
Share-based Compensation Schedule Of Stock Option, Activity 25	4,200cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFiveNineNineLnSevenThreeXEightBMLTwo
Share-based Compensation Schedule Of Stock Option, Activity 26	14.05cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFivexDSqWqfsNHZK
Share-based Compensation Schedule Of Stock Option, Activity 27	1.7cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFivedkSixdtTZeroBvLJB
Share-based Compensation Schedule Of Stock Option, Activity 28	$ 0cbak_ScheduleOfStockOptionActivityZeroTwoSixFiveZeroThreeOneThreeFiveRQGZeroDOnecsJKThreeSeven

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Share-based Compensation Schedule Of Stock Option, Activity 7

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Share-based Compensation Schedule Of Stock Option, Activity 11

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Share-based Compensation Schedule Of Stock Option, Activity 5

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Share-based Compensation Schedule Of Stock Option, Activity 8

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Share-based Compensation Schedule Of Stock Option, Activity 28

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Share-based Compensation Schedule Of Stock Option, Activity 1

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