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Note 4 - Goodwill (Tables) | 3 Months Ended
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Mar. 31, 2014
Disclosure Text Block Supplement [Abstract] |
Schedule of Goodwill [Table Text Block] |
|  | Goodwill |
Balance as of December, 31, 2012, gross |  | $ | 331,313 |
Accumulated impairment loss |  |  | (299,266 | )
Balance as of December 31, 2012, net |  |  | 32,047 |
Additions through acquisitions |  |  | 17,464 |
Balance as of December 31, 2013, net |  |  | 49,511 |
Additions through acquisitions |  |  | 7,276 |
Balance as of March 31, 2014, net |  | $ | 56,787 |

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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 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: 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 + Details
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