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NOTE 5 - GOODWILL AND OTHER INTANGIBLE ASSETS (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
--- | --- | --- | --- | ---
Business Acquisition, Purchase Price Allocation, Goodwill Amount | $ 193,871 | $ 159,507 | $ 143,353 | $ 106,502
Union Imaging |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount |  |  | 3,748 |
Anaheim Open MRI |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount |  |  | 305 |
Truxtun Medical Group |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount |  |  | 10,652 |
Sonix Medical Resources |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount |  |  | 884 |
Health Diagnostics |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount |  |  | 977 |
Image Medical Corporation |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount |  | 2,443 | 7,327 |
Progressive Health |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount |  | 1,369 | 12,856 |
Presgar Imaging |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount |  | 155 | 102 |
Imaging On Call LLC |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount |  | 3,799 |  |
Stuart London MD |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount |  | 600 |  |
Diagnostic Health Corp |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount |  | 2,009 |  |
Hematology Oncology |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount |  | 1,016 |  |
Radar LLC |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount |  | 845 |  |
Raven Holdings US Inc |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount | 7,895 | 3,918 |  |
Camarillo Imaging |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount | 86 |  |  |
West Coast Radiology |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount | 5,395 |  |  |
Advanced Medical Imaging Of Stuart |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount | 923 |  |  |
OrthopedicImaging [Member] |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount | 302 |  |  |
Upper Chesapeake Imaging |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount | 1,849 |  |  |
Vanowen Radioloty |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount | 386 |  |  |
ClinicalRadiology [Member] |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount | 1,838 |  |  |
Lenox Hill Radiology |  |  |  |
Business Acquisition, Purchase Price Allocation, Goodwill Amount | $ 15,690 |  |  |

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- Definition Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 52 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 53 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant