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Inventories (Narrative) (Details) (USD $)
12 Months Ended
Sep. 30, 2014
Inventories 1 $ 59,584,817cbak_InventoriesZeroTwoSixFiveZeroThreeOneThreeFiveHFVmwLRdqFiveTwoThree
Inventories 2 $ 8,752,543cbak_InventoriesZeroTwoSixFiveZeroThreeOneThreeFiveCyPngtNNineKWdFour