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1. DESCRIPTION OF BUSINESS (Details) | Dec. 31, 2012
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Franklin Imaging Joint Venture [Member] |
Owned by parent company | 49.00%
Carroll County Radiology, LLC [Member] |
Owned by parent company | 40.00%
MRI at St. Joseph Medical Center, LLC [Member] |
Owned by parent company | 49.00%
Greater Baltimore Diagnostic Imaging Partnership [Member] |
Owned by parent company | 50.00%

X
- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant