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TAX RECEIVABLE (Details) (USD $) | Dec. 31, 2014 | Dec. 31, 2013
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Tax Receivable [Line Items] |  |
Value added tax recoverable | $ 138,986 us-gaap_ValueAddedTaxReceivable | $ 372,935 us-gaap_ValueAddedTaxReceivable

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- Details
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Namespace Prefix: | dhrm_
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Balance Type: | na
Period Type: | duration

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- Definition Carrying amount as of the balance sheet date of value added taxes due either from customers arising from sales on credit terms, or as previously overpaid to tax authorities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 8 -Article 5 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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