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SHORT-TERM BORROWINGS (Details Textual) | 12 Months Ended |  |  | 12 Months Ended | 0 Months Ended | 1 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Dec. 31, 2012 USD ($) | Dec. 31, 2014 CNY | Dec. 13, 2013 USD ($) | Dec. 13, 2013 CNY | Dec. 31, 2014 Floating Interest Rate [Member] | Mar. 07, 2014 Nanjing Bank Company Limited [Member] USD ($) | Mar. 07, 2014 Nanjing Bank Company Limited [Member] CNY | Jan. 20, 2014 Nanjing Bank Company Limited [Member] USD ($) | Jan. 20, 2014 Nanjing Bank Company Limited [Member] CNY | Jan. 28, 2014 Nanjing Bank Company Limited [Member] USD ($) | Jan. 28, 2014 Nanjing Bank Company Limited [Member] CNY | Jan. 20, 2014 Commercial Bank of China Limited [Member] USD ($) | Jan. 20, 2014 Commercial Bank of China Limited [Member] CNY | Dec. 31, 2014 Commercial Bank of China Limited [Member] USD ($) | Dec. 31, 2014 Commercial Bank of China Limited [Member] CNY
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term Line of Credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,440,500 us-gaap_LineOfCredit / dei_LegalEntityAxis = dhrm_CommercialBankOfChinaLimitedMember | 15,000,000 us-gaap_LineOfCredit / dei_LegalEntityAxis = dhrm_CommercialBankOfChinaLimitedMember
Line of Credit Facility, Interest Rate During Period | 7.50%us-gaap_LineOfCreditFacilityInterestRateDuringPeriod | 6.30%us-gaap_LineOfCreditFacilityInterestRateDuringPeriod | 6.60%us-gaap_LineOfCreditFacilityInterestRateDuringPeriod |  |  |  | 7.50%us-gaap_LineOfCreditFacilityInterestRateDuringPeriod / us-gaap_VariableRateAxis = dhrm_FloatingInterestRateMember | 7.50%us-gaap_LineOfCreditFacilityInterestRateDuringPeriod / dei_LegalEntityAxis = dhrm_NanjingBankCompanyLimitedMember | 7.50%us-gaap_LineOfCreditFacilityInterestRateDuringPeriod / dei_LegalEntityAxis = dhrm_NanjingBankCompanyLimitedMember |  |  | 7.50%us-gaap_LineOfCreditFacilityInterestRateDuringPeriod / dei_LegalEntityAxis = dhrm_NanjingBankCompanyLimitedMember | 7.50%us-gaap_LineOfCreditFacilityInterestRateDuringPeriod / dei_LegalEntityAxis = dhrm_NanjingBankCompanyLimitedMember |  |  |  |
Short-term borrowings | 2,440,500 us-gaap_LinesOfCreditCurrent | 2,477,715 us-gaap_LinesOfCreditCurrent |  | 15,000,000 us-gaap_LinesOfCreditCurrent | 2,477,715 us-gaap_LinesOfCreditCurrent | 15,000,000 us-gaap_LinesOfCreditCurrent |  | 812,000 us-gaap_LinesOfCreditCurrent / dei_LegalEntityAxis = dhrm_NanjingBankCompanyLimitedMember | 5,000,000 us-gaap_LinesOfCreditCurrent / dei_LegalEntityAxis = dhrm_NanjingBankCompanyLimitedMember |  |  | 1,624,000 us-gaap_LinesOfCreditCurrent / dei_LegalEntityAxis = dhrm_NanjingBankCompanyLimitedMember | 10,000,000 us-gaap_LinesOfCreditCurrent / dei_LegalEntityAxis = dhrm_NanjingBankCompanyLimitedMember |  |  |  |
Line of Credit Facility, Expiration Date |  |  |  |  |  |  |  | Mar. 07, 2015 | Mar. 07, 2015 |  |  | Jan. 28, 2015 | Jan. 28, 2015 |  |  |  |
Interest Expense, Short-term Borrowings | 176,231 us-gaap_InterestExpenseShortTermBorrowings | 159,483 us-gaap_InterestExpenseShortTermBorrowings | 149,488 us-gaap_InterestExpenseShortTermBorrowings |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of Short-term Debt, Total |  |  |  |  |  |  |  |  |  | $ 825,905 us-gaap_RepaymentsOfShortTermDebt / dei_LegalEntityAxis = dhrm_NanjingBankCompanyLimitedMember | 5,000,000 us-gaap_RepaymentsOfShortTermDebt / dei_LegalEntityAxis = dhrm_NanjingBankCompanyLimitedMember |  |  | $ 1,651,970 us-gaap_RepaymentsOfShortTermDebt / dei_LegalEntityAxis = dhrm_CommercialBankOfChinaLimitedMember | 10,000,000 us-gaap_RepaymentsOfShortTermDebt / dei_LegalEntityAxis = dhrm_CommercialBankOfChinaLimitedMember |  |

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- Definition The aggregate interest expense incurred on short-term borrowings including commercial paper and Federal funds purchased and securities sold under agreements to repurchase. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.7) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 7 -Article 9 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Date the credit facility terminates, in CCYY-MM-DD format. + 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 210.5-02.19(b),22(b)) -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 19, 22 -Article 5 + Details
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- Definition The effective interest rate during the reporting period. + 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 210.5-02.19(b),22(b)) -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 19, 22 -Article 5 + Details
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- Definition The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + 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 210.5-02.20) -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 19, 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Line-of-Credit Arrangement -URI http://asc.fasb.org/extlink&oid=6517033 + Details
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