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NON-CONTROLLING INTEREST (Details) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Original paid-in capital	$ 384,211	$ 384,211
Retained Earnings	727,339	754,894
Accumulated other comprehensive income	344,485	300,801
Non-controlling interest	$ 1,456,035	$ 1,439,906

X

- Definition

Amount of accumulated comprehensive income (loss) attributable to noncontrolling interests.

+ References

No definition available.

+ Details

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

X

- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit attributable to non controlling interest.

+ References

No definition available.

+ Details

Name:	dhrm_RetainedEarningsAccumulatedDeficitAttributableToNonControllingInterest
Namespace Prefix:	dhrm_
Data Type:	xbrli:monetaryItemType
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X

- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

+ 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 210.5-02.31)

-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 27

-Article 5



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 20

-Article 7

+ Details

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X

- Definition

The amount of noncontrolling interest in subsidiary represented by preferred securities issued by the subsidiary.

+ 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 210.5-02.31)

-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 27

-Article 5

+ Details

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