Note 11 - Reserve for Premium Deficiency Second Lien Premium Deficiency Reserve (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Second Lien Premium Deficiency Reserve [Roll Forward]
Balance at January 1	$ 10,736
Balance at December 31	3,644	10,736
Change in reserve for premium deficiency	(7,092)	(14,621)	(61,504)
Mortgage Insurance Segment
Second Lien Premium Deficiency Reserve [Roll Forward]
Balance at January 1	10,736	25,357
Incurred losses recognized in loss reserves	(11,143)	(10,233)
Premiums recognized in earned premiums	2,851	2,501
Changes in underlying assumptions	595	(8,368)
Accretion of discount and other	605	1,479
Balance at December 31	3,644	10,736	25,357
Change in reserve for premium deficiency	$ (7,092)	$ (14,621)	$ (61,504)