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Note 6 - Goodwill and Other Intangible Assets, Net Schedule of Goodwill (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Oct. 31, 2015 | Mar. 31, 2015 | Sep. 30, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Mortgage and Real Estate Services Segment [Member] |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Goodwill, Gross, Beginning of Period |  | $ 194,027 | $ 197,265 | $ 194,027 |
Goodwill, Acquired During Period |  |  | 0 | 3,238 |
Goodwill, Gross, End of Period |  |  | 197,265 | 197,265 |
Goodwill, Impaired, Accumulated Impairment Loss, Beginning of Period |  | (2,095) | (2,095) | (2,095) |
Goodwill, Impairment Loss |  |  | 0 | 0 |
Goodwill, Impaired, Accumulated Impairment Loss, End of Period |  |  | (2,095) | (2,095) |
Goodwill, Net |  |  | $ 195,170 | $ 195,170 | $ 191,932
Clayton Holdings, LLC [Member] | Series of Individually Immaterial Business Acquisitions [Member] |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Goodwill, Acquired During Period | $ 800 | $ 2,400 |  |  |

X
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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