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RESTRICTED CASH (Details)
12 Months Ended 12 Months Ended
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Dec. 31, 2012
USD ($)
Dec. 31, 2014
CNY
Dec. 31, 2014
Game Licenses [Member]
USD ($)
Restricted Cash and Cash Equivalents Items [Line Items]          
Payments for game license $ 98,094us-gaap_PaymentsToAcquireIntangibleAssets $ 1,565,294us-gaap_PaymentsToAcquireIntangibleAssets $ 13,666,768us-gaap_PaymentsToAcquireIntangibleAssets   $ 15,000,000us-gaap_PaymentsToAcquireIntangibleAssets
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
Deposit in connection with game license agreement 21,900,000us-gaap_DepositAssets        
Current portion of deposit 10,900,000kz_DepositAssetsCurrent        
Short-term bank loan 42,428,890us-gaap_ShortTermBankLoansAndNotesPayable      260,000,000us-gaap_ShortTermBankLoansAndNotesPayable  
Restricted cash $ 53,375,960us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue      260,000,000us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue