v2.4.1.9
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Textual) (USD $)
9 Months Ended 12 Months Ended
Sep. 30, 2014
Dec. 31, 2014
Dec. 31, 2013
Summary Of Significant Accounting Policies [Line Items]      
Advertising Expense   $ 423,498us-gaap_AdvertisingExpense $ 298,040us-gaap_AdvertisingExpense
Allowance for Doubtful Accounts Receivable   1,337,364us-gaap_AllowanceForDoubtfulAccountsReceivable 984,717us-gaap_AllowanceForDoubtfulAccountsReceivable
Inventory Valuation Reserves   140,582us-gaap_InventoryValuationReserves 4,603,929us-gaap_InventoryValuationReserves
Impairment of Long-Lived Assets Held-for-use   772,091us-gaap_ImpairmentOfLongLivedAssetsHeldForUse 773,874us-gaap_ImpairmentOfLongLivedAssetsHeldForUse
Finite-Lived Intangible Assets, Accumulated Impairment Loss   6,512,731deyu_FinitelivedIntangibleAssetsAccumulatedImpairmentLoss 6,675,073deyu_FinitelivedIntangibleAssetsAccumulatedImpairmentLoss
Allowance for Doubtful Accounts Receivable, Recoveries $ 834,917us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries $ 834,917us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries $ 0us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries