Note 11 - Reserve for Premium Deficiency Second Lien Premium Deficiency Reserve (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Second Lien Premium Deficiency Reserve [Roll Forward]
Balance at December 31	$ 3,685	$ 3,644
Second Lien Mortgage Insurance Product [Member] | Mortgage Insurance Segment
Second Lien Premium Deficiency Reserve [Roll Forward]
Balance at January 1	3,644	10,736
Incurred losses recognized in loss reserves	(1,897)	(11,143)
Premiums recognized in earned premiums	1,530	2,851
Changes in underlying assumptions	241	595
Accretion of discount and other	167	605
Balance at December 31	$ 3,685	$ 3,644