XML 28 R57.htm IDEA: XBRL DOCUMENT v2.4.0.8

EARNINGS PER SHARE (Details Textual)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Options (in shares)	22,383	147,917
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	450,000	450,000

X

- Definition

Stock options during the period.

+ References

No definition available.

+ Details

Name:	dhrm_StockOptions
Namespace Prefix:	dhrm_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant