XML 21 R55.htm IDEA: XBRL DOCUMENT
v2.4.0.8

TAX RECEIVABLE (Details Textual) | 12 Months Ended
--- | ---
Dec. 31, 2013
Tax Receivable [Line Items] |
Standard Vat Rate | 17.00%

X
- Definition Represents the standard percentage of value added tax on gross sale price. + References No definition available. + Details
Name: | dhrm_StandardVatRate
Namespace Prefix: | dhrm_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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