XML 85 R34.htm IDEA: XBRL DOCUMENT
v2.4.0.6

TAX RECEIVABLE (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2012
Tax Receivable [Abstract] |
Schedule of Tax Receivable [Table Text Block] | Tax receivable consists of the following:
|  | December 31, |  |  | December 31, |
|  | 2012 |  |  | 2011 |
|  | US$ |  |  | US$ |
Value added tax receivable |  |  | 328,208 |  |  |  | 888,452

X
- Definition Tabular disclosure of tax receivable. + References No definition available. + Details
Name: | dhrm_ScheduleOfTaxReceivableTableTextBlock
Namespace Prefix: | dhrm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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