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5. GOODWILL AND OTHER INTANGIBLE ASSETS (Tables) | 12 Months Ended
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Dec. 31, 2012
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of activity in goodwill | Activity in goodwill for the years ended December 31, 2011 and 2012 is provided below (in thousands):
Balance as of January 1, 2011 (unaudited) |  | $ | 223 |
Goodwill acquired through GBDIP's acquisition of MIB Partnership, LLP |  |  | 7,593 |
Balance as of December 31, 2011 (unaudited) |  |  | 7,816 |
Goodwill acquired through Carroll County Radiology's acquisition of Westminster from RadNet, Inc. |  |  | 2,107 |
Balance as of December 31, 2012 |  | $ | 9,923 |
Schedule of amortization expense |
|  | 2013 |  |  | 2014 |  |  | 2015 |  |  | 2016 |  |  | 2017 |  |  | Thereafter |  |  | Total |  |  | Weighted average amortization period remaining in years |
Management service contracts |  |  | 16 |  |  |  | 16 |  |  |  | 16 |  |  |  | 16 |  |  |  | 16 |  |  |  | 226 |  |  |  | 306 |  |  |  | 19.0 |
Covenant not to compete contracts |  |  | 104 |  |  |  | 104 |  |  |  | 105 |  |  |  | 105 |  |  |  | – |  |  |  | – |  |  |  | 418 |  |  |  | 4.0 |
Total annual amortization |  | $ | 120 |  |  | $ | 120 |  |  | $ | 121 |  |  | $ | 121 |  |  | $ | 16 |  |  | $ | 226 |  |  | $ | 724 |  |  |  |  |

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- Definition Tabular disclosure of the estimated aggregate amortization expense for intangible assets subject to amortization for each of the five succeeding fiscal years. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13854-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph e -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 47 -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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