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WARRANTS (Details 2) - Fair Value, Inputs, Level 2 [Member] - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Warrants [Line Items] |  |  |
Beginning balance | $ 553,060 | $ 720,857 | $ 374,166
Warrants issued | 0 | 2,698,374 | 0
Fair value change of the issued warrants included in earnings | (390,324) | (2,866,171) | 346,691
Ending balance | $ 162,736 | $ 553,060 | $ 720,857

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- Definition It represents the fair value of issued warrants. + References No definition available. + Details
Name: | dhrm_FairValueOfIssuedWarrants
Namespace Prefix: | dhrm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Fair Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. + References No definition available. + Details
Name: | dhrm_WarrantsAndRightsOutstandingFairValue
Namespace Prefix: | dhrm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Fair value of warrants issued. + References No definition available. + Details
Name: | dhrm_WarrantsIssuedAtFairValue
Namespace Prefix: | dhrm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |