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ADVANCES TO SUPPLIERS - THIRD PARTIES, NET (Details 1) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Schedule Of Advance To Suppliers [Line Items] |  |
Beginning balance | $ 8,897,750 | $ 0
Addition | 311,420 | 8,901,490
Less: write-off | (4,662,795) | 0
Exchange rate effect | (292,232) | (3,740)
Ending balance | 4,254,143 | 8,897,750
Discontinued Operations [Member] |  |
Schedule Of Advance To Suppliers [Line Items] |  |
Beginning balance | (8,571,652) |
Ending balance | (4,157,647) | (8,571,652)
Continuing Operations [Member] |  |
Schedule Of Advance To Suppliers [Line Items] |  |
Beginning balance | 326,098 |
Ending balance | $ 96,496 | $ 326,098

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- Definition Allowances for doubtful accounts in advance to suppliers third party with in one year as of balance sheet date. + References No definition available. + Details
Name: | dhrm_AllowanceForDoubtfulAccountsInAdvanceToSuppliersThirdPartyCurrent
Namespace Prefix: | dhrm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of increase (decrease) in the allowance for doubtful accounts in advance to suppliers third party. + References No definition available. + Details
Name: | dhrm_AllowanceForDoubtfulAccountsInAdvanceToSuppliersThirdPartyTranslationAdjustments
Namespace Prefix: | dhrm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of direct write-downs of Advance to suppliers third party charged against the allowance. + References No definition available. + Details
Name: | dhrm_AllowanceForDoubtfulAccountsInAdvanceToSuppliersThirdPartyWriteOffs
Namespace Prefix: | dhrm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount of expense related to write-down of allowance for doubtful accounts in advance to suppliers third party. + References No definition available. + Details
Name: | dhrm_ProvisionForDoubtfulAccountsInAdvancesToSuppliersThirdParty
Namespace Prefix: | dhrm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | dhrm_ScheduleOfAdvanceToSuppliersLineItems
Namespace Prefix: | dhrm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementOperatingActivitiesSegmentAxis=us-gaap_SegmentDiscontinuedOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementOperatingActivitiesSegmentAxis=us-gaap_SegmentContinuingOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |