Background and Basis of Presentation (Details Textual)	9 Months Ended
Sep. 30, 2012
Number of Product and Services Provided Imaging Platforms	40

Number of product and/or services provided by the entity during the reporting period under its imaging platform.

No definition available.

Name:	dcmt_NumberOfProductAndServicesProvidedImagingPlatforms
Namespace Prefix:	dcmt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration