Note 15 - Commitments and Contingencies Legal Proceedings (Details) (USD $)				0 Months Ended	3 Months Ended	99 Months Ended		3 Months Ended
	Mar. 31, 2014 matters	Mar. 31, 2014 Loss Contingency 8-1-2011 Claim [Member] loan	Aug. 01, 2011 Loss Contingency 8-1-2011 Claim [Member] loan	Apr. 09, 2013 Real Estate Settlement Practices Act of 1974 [Member]	Mar. 31, 2014 Internal Revenue Service (IRS) [Member]	Mar. 31, 2014 Captive Reinsurance Arrangements [Member]	Mar. 31, 2014 Minimum [Member] loan plaintiff	Mar. 31, 2014 Total Primary Insurance Mortgage Insurance Products [Member] Maximum [Member] Insurance Claims [Member]	Mar. 31, 2014 Pool Insurance Mortgage Insurance Product [Member] Maximum [Member] Insurance Claims [Member]
Loss Contingencies [Line Items]
Number Of Home Mortgage Loans Involved In Pending Litigation		507	220				1
Risk In Force		$ 29,000,000	$ 13,000,000
Loss Contingency, Number of Plaintiffs Whose Loans Were Insured							1
Loss Contingency, Settlement Agreement, Number of Years Restricted From Activities				10 years
Litigation Settlement, Gross				3,750,000
Insurance Recoveries						800,000,000
Proposed Increase To Tax Liability Resulting From I.R.S. Examination Of Tax Years 2000 Through 2007					128,000,000
Income Tax Examination, Proposed Penalties					$ 42,000,000
Number of Days Company Has to Respond to IRS Office of Appeals Deficiency Notice					90 days
Loss Contingency, Legal Actions Commencement, Period								2 years	3 years
Minimum Number of Pending or Threatened Matters That Could Effect Our Results	1