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WARRANTS (Details 2) (Fair Value, Inputs, Level 2 [Member], USD $) | 6 Months Ended
--- | ---
Jun. 30, 2014 | Jun. 30, 2013
Fair Value, Inputs, Level 2 [Member] |  |
Class of Warrant or Right [Line Items] |  |
Beginning balance | $ 720,857 | $ 374,166
Warrants issued | 2,698,375 | 0
Fair value change of the issued warrants included in earnings | (1,527,835) | 4,413
Ending balance | $ 1,891,397 | $ 378,579

X
- 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

X
- 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

X
- 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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- Details
Name: | us-gaap_ClassOfWarrantOrRightLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration