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Note 13 - Commitments and Contingencies Legal Proceedings (Details) | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2018 matter | Apr. 12, 2018 Certificates | Jun. 05, 2017 Certificates | Dec. 17, 2016 Certificates
Unasserted Claim [Member] | Minimum [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Minimum Number of Pending or Threatened Matters That Could Affect Our Results | matter | 1 |  |  |
Total Primary Insurance Mortgage Insurance Products [Member] | Insurance Claims [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Loss Contingency, Legal Actions Commencement, Period | 2 years |  |  |
Pool Insurance Mortgage Insurance Product [Member] | Insurance Claims [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Loss Contingency, Legal Actions Commencement, Period | 3 years |  |  |
Initial [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Insurance Certificates Issued Under Multiple Insurance Policies |  |  |  | 9,420
Ocwen Filings [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Insurance Certificates Issued Under Multiple Insurance Policies |  |  | 8,870 |
Subsequent Event [Member] | Ocwen Filings [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Insurance Certificates Whose Scopes Were Narrowed as a Result of the Confidential Agreement |  | 2,500,000 |  |

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- Definition Under Our Master Insurance Policy Any Suit Or Action Arising From Any Right Of The Insured Under The Policy Must Be Commenced Within This Number Of Years After Such Right First Arose + References No definition available. + Details
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- Definition Number of pending claims pertaining to a loss contingency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349 + Details
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