v2.4.1.9
SHAREHOLDERS' EQUITY (Details 1) (Series A Preferred Stock [Member], USD $)
 0 Months Ended 1 Months Ended
May 10, 2010
Apr. 27, 2010
Shareholders Equity [Line Items]    
Indexed common shares (in shares) 589,689deyu_IndexedCommonShares 1,866,174deyu_IndexedCommonShares
Components of fair value:    
Common stock equivalent value $ 2,083,094deyu_CommonStockEquivalentValue $ 6,631,403deyu_CommonStockEquivalentValue
Dividend feature 209,439deyu_DividendFeature 659,821deyu_DividendFeature
Indexed Common Shares At Fair Value $ 2,292,533deyu_IndexedCommonSharesAtFairValue $ 7,291,224deyu_IndexedCommonSharesAtFairValue
Fair Value, Inputs, Level 3 [Member]
    
Significant assumptions:    
Common stock price (in dollars per share) $ 3.53us-gaap_SharePrice
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember		 $ 3.55us-gaap_SharePrice
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
Horizon for dividend cash flow projection 2deyu_DividendCashFlowProjection
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember		 2deyu_DividendCashFlowProjection
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
Weighted average cost of capital ("WACC") 15.55%deyu_WeightedAverageCostOfCapitalPercentage
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember		 15.91%deyu_WeightedAverageCostOfCapitalPercentage
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember