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EQUITY (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Option Indexed to Issuers Equity [Line Items]
• Balance - beginning of year	$ 76,260	$ 76,260	$ 75,489
• Addition to statutory reserves	0	0	771
• Balance - end of year	$ 76,260	$ 76,260	$ 76,260

X

- Definition

Additions made to statutory surplus reserve of the company during the period.

+ References

No definition available.

+ Details

Name:	dhrm_StatutoryReserveAddition
Namespace Prefix:	dhrm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of statutory surplus reserve of the company during the period.

+ References

No definition available.

+ Details

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

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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