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PROPERTY AND EQUIPMENT, NET (Details Textual)	12 Months Ended
	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2013 CNY	Dec. 31, 2012 CNY	Dec. 31, 2002 CNY
Property, Plant and Equipment [Line Items]
Building Pledged as Collateral	$ 2,477,715	$ 2,407,200		15,000,000	15,000,000
Depreciation and amortization	619,890	552,086	450,518
Land Use Rights Purchase Price						1,944,000

X

- Definition

Carrying amount as of the balance sheet date of Buildings that have been pledged as collateral for borrowings.

+ References

No definition available.

+ Details

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Namespace Prefix:	dhrm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The purchase price of land use rights.

+ References

No definition available.

+ Details

Name:	dhrm_LandUseRightsPurchasePrice
Namespace Prefix:	dhrm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration