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v2.4.0.8

CONCENTRATIONS (Details Textual) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Dec. 31, 2012
Entity Wide Receivable Major Customer Percentage Description | No customer represented more than 10% of amounts receivable |  |
Net Revenue, Percentage | 65.00% | 76.00% |
Customer 1 [Member] |  |  |
Entity Wide Revenue, Major Customer, Percentage | 18.00% | 10.00% |
Entity Wide Receivable, Major Customer, Percentage |  |  | 12.00%
Customer 2 [Member] |  |  |
Entity Wide Receivable, Major Customer, Percentage |  |  | 10.00%

X
- Definition Percentage of receivables generated from a external customer. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Description of percentage of receivables generated from a external customer. + References No definition available. + Details
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Namespace Prefix: | dhrm_
Data Type: | xbrli:stringItemType
Balance Type: | na
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- Definition Percentage of net revenue generated from three top selling product of the company. + References No definition available. + Details
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Balance Type: | na
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13537-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13531-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 + Details
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