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) | 589,689 deyu_IndexedCommonShares | 1,866,174 deyu_IndexedCommonShares
Components of fair value: |  |
Common stock equivalent value | $ 2,083,094 deyu_CommonStockEquivalentValue | $ 6,631,403 deyu_CommonStockEquivalentValue
Dividend feature | 209,439 deyu_DividendFeature | 659,821 deyu_DividendFeature
Indexed Common Shares At Fair Value | $ 2,292,533 deyu_IndexedCommonSharesAtFairValue | $ 7,291,224 deyu_IndexedCommonSharesAtFairValue
Fair Value, Inputs, Level 3 [Member] |  |
Significant assumptions: |  |
Common stock price (in dollars per share) | $ 3.53 us-gaap_SharePrice / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember | $ 3.55 us-gaap_SharePrice / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember
Horizon for dividend cash flow projection | 2 deyu_DividendCashFlowProjection / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember | 2 deyu_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

X
- Definition Represents the equivalent value of common stock. + References No definition available. + Details
Name: | deyu_CommonStockEquivalentValue
Namespace Prefix: | deyu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | deyu_ComponentsOfFairValueAbstract
Namespace Prefix: | deyu_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents dividend cash flow projection. + References No definition available. + Details
Name: | deyu_DividendCashFlowProjection
Namespace Prefix: | deyu_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the dividend feature on common stock. + References No definition available. + Details
Name: | deyu_DividendFeature
Namespace Prefix: | deyu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the number of common shares indexed and to be issued upon conversion of convertible preferred stock. + References No definition available. + Details
Name: | deyu_IndexedCommonShares
Namespace Prefix: | deyu_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the fair value of indexed common stock. + References No definition available. + Details
Name: | deyu_IndexedCommonSharesAtFairValue
Namespace Prefix: | deyu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | deyu_PreferredStockFairValueAssumptionsAndMethodologyAbstract
Namespace Prefix: | deyu_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | deyu_ShareholdersEquityLineItems
Namespace Prefix: | deyu_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents percentage of weighted average cost of capital. + References No definition available. + Details
Name: | deyu_WeightedAverageCostOfCapitalPercentage
Namespace Prefix: | deyu_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Price of a single share of a number of saleable stocks of a company. + References No definition available. + Details
Name: | us-gaap_SharePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant