Note 12 - Accumulated Other Comprehensive Income Rollforward of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Available-for-sale Securities, Gross Realized Gain (Loss), Excluding Other than Temporary Impairments		$ 69,150		$ 0		$ 349
Accumulated Other Comprehensive Income (Loss), Net of Tax		51,485
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Net foreign currency translation adjustments		(217)		(226)		0
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax		(22,573)		13,650		19,149
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax		44,183		(1,039)		656
Net unrealized gains on investments		(66,756)		14,689		18,493
Other comprehensive income (loss), net of tax		(70,227)		14,161		21,090
Accumulated Other Comprehensive Income (Loss), Net of Tax		(18,477)		51,485
Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Available-for-sale Securities, Gross Realized Gain (Loss), Excluding Other than Temporary Impairments		69,200
Accumulated Other Comprehensive Income (Loss), before Tax		79,208		57,345		24,904
Accumulated Other Comprehensive Income, Tax (Benefit)		27,723		19,962		8,809
Accumulated Other Comprehensive Income (Loss), Net of Tax		51,485		37,383		16,095
Other Comprehensive Income (Loss), before Tax [Abstract]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax		(333)		(326)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax		(34,728)		21,204		29,460
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	[1]	67,974		(1,599)		1,285
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax		(102,702)		22,803		28,175
Other Comprehensive Income (Loss), Before Tax, Unrealized Gains (Losses) on Investments Recorded as Assets Held for Sale		(5,006)	[2]	(329)	[3]	3,961	[3]
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent		(108,041)		22,148		32,136
Net actuarial gain (loss), before Tax		408		(285)		305
Other Comprehensive Income (Loss), Tax [Abstract]
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax		(116)		(100)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax		(12,155)		7,554		10,311
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	[1]	23,791		(560)		629
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax		(35,946)		8,114		9,682
Other Comprehensive Income (Loss), Tax Effect, Unrealized Gains (Losses) on Investments Recorded as Assets Held for Sale		(1,752)	[2]	(27)	[3]	1,364	[3]
Other Comprehensive Income (Loss), Tax		(37,814)		7,987		11,046
Net actuarial gain (loss), Tax		143		(226)		107
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Net foreign currency translation adjustments		(217)		(226)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax		(22,573)		13,650		19,149
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	[1]	44,183		(1,039)		656
Net unrealized gains on investments		(66,756)		14,689		18,493
Other Comprehensive Income (Loss), Net of Tax, Unrealized Gains (Losses) on Investments Recorded as Assets Held for Sale		(3,254)	[2]	(302)	[3]	2,597	[3]
Other comprehensive income (loss), net of tax		(70,227)		14,161		21,090
Net actuarial gain (loss)		265		(59)		198
Accumulated Other Comprehensive Income (Loss), before Tax		(28,425)		79,208		57,345
Accumulated Other Comprehensive Income, Tax (Benefit)		(9,948)		27,723		19,962
Accumulated Other Comprehensive Income (Loss), Net of Tax		$ (18,477)		$ 51,485		$ 37,383

[1] Included in net gains (losses) on investments on our consolidated statements of operations.

[2] For 2015, this amount represents the recognition of investment gains included in income from discontinued operations, net of tax, as a result of the completion of the sale of Radian Asset Assurance on April 1, 2015. Previously, pursuant to accounting standards, such investment gains had been deferred and recorded in AOCI.

[3] Represents the unrealized holding gains (losses) arising during the period on investments recorded as assets held for sale, net of reclassification adjustments for net gains (losses) included in net income from discontinued operations.