Note 9 - Financial Guaranty Insurance Contracts Weighted Average Risk Free Rates For Financial Guaranty (Details)	6 Months Ended	12 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012	Dec. 31, 2011
Weighted Average Discount Rate [Line Items]
Weighted Average Discount Rate, Percent	2.29%	1.95%	2.00%	2.80%

The average discount rate applied to insurance contracts to determine future policy benefits to be paid to or on behalf of policyholders.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 40

-Section 50

-Paragraph 5

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6482714&loc=d3e14881-158438

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration