Note 12 - Commitments and Contingencies Legal Proceedings (Details)	3 Months Ended
	Mar. 31, 2017 matter	Dec. 22, 2016 loan
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] | Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Legal Actions Commencement, Period	2 years
Pool Insurance Mortgage Insurance Product [Member] | Insurance Claims [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Legal Actions Commencement, Period	3 years
Ocwen Filings [Member] | Insurance Claims [Member]
Loss Contingencies [Line Items]
Number Of Home Mortgage Loans Involved In Pending Litigation | loan		9,420