Note 6 - Investments Schedule of Unrealized Losses (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014 security	Sep. 30, 2013	Dec. 31, 2013 security
Schedule of Securities With Unrealized Losses
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, Additional Credit Losses	$ 0	$ 0
Continuous Loss Position Less Than Twelve Months
Number of Securities	67		5
Fair value HTM And AFS state and municipal obligations	199,132		19,903
Unrealized losses AFS And HTM state and municipal obligations	2,633		99
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	2		4
Fair value HTM And AFS state and municipal obligations	6,768		8,480
Unrealized Losses AFS And HTM state and municipal obligations	127		1,018
Continuous Loss Position, Total
Number of securities	69		9
Fair Value HTM And AFS state and municipal obligations	205,900		28,383
Unrealized losses AFS and HTM state and municipal obligations	2,760		1,117
US government and agency securities
Continuous Loss Position Less Than Twelve Months
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	2		1
Fair value available-for-sale securities	7,114		5,401
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInAOCI	35		57
Continuous Unrealized Loss Position, Twelve Months Or Greater
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	0		0
Fair value available-for-sale securities	0		0
AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInAOCI	0		0
Continuous Loss Position, Total
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	2		1
Fair value available-for-sale securities	7,114		5,401
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInAOCI	35		57
State and municipal obligations
Continuous Loss Position Less Than Twelve Months
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	7
Number of Securities			4
Fair value available-for-sale securities	426
Fair value HTM And AFS state and municipal obligations			14,502
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInAOCI	23
Unrealized losses AFS And HTM state and municipal obligations			42
Continuous Unrealized Loss Position, Twelve Months Or Greater
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	1
Number of securities			2
Fair value available-for-sale securities	5,726
Fair value HTM And AFS state and municipal obligations			5,514
AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInAOCI	8
Unrealized Losses AFS And HTM state and municipal obligations			534
Continuous Loss Position, Total
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	8
Number of securities			6
Fair value available-for-sale securities	6,152
Fair Value HTM And AFS state and municipal obligations			20,016
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInAOCI	31
Unrealized losses AFS and HTM state and municipal obligations			576
Corporate bonds and notes
Continuous Loss Position Less Than Twelve Months
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	20		0
Fair value available-for-sale securities	57,381		0
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInAOCI	713		0
Continuous Unrealized Loss Position, Twelve Months Or Greater
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	1		2
Fair value available-for-sale securities	1,042		2,966
AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInAOCI	119		484
Continuous Loss Position, Total
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	21		2
Fair value available-for-sale securities	58,423		2,966
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInAOCI	832		484
CMBS
Continuous Loss Position Less Than Twelve Months
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	5
Fair value available-for-sale securities	21,495
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInAOCI	137
Continuous Unrealized Loss Position, Twelve Months Or Greater
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	0
Fair value available-for-sale securities	0
AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInAOCI	0
Continuous Loss Position, Total
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	5
Fair value available-for-sale securities	21,495
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInAOCI	137
Other ABS
Continuous Loss Position Less Than Twelve Months
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	28
Fair value available-for-sale securities	109,990
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInAOCI	1,684
Continuous Unrealized Loss Position, Twelve Months Or Greater
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	0
Fair value available-for-sale securities	0
AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInAOCI	0
Continuous Loss Position, Total
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	28
Fair value available-for-sale securities	109,990
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInAOCI	1,684
Foreign government securities
Continuous Loss Position Less Than Twelve Months
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	5
Fair value available-for-sale securities	2,726
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInAOCI	41
Continuous Unrealized Loss Position, Twelve Months Or Greater
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	0
Fair value available-for-sale securities	0
AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInAOCI	0
Continuous Loss Position, Total
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	5
Fair value available-for-sale securities	2,726
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInAOCI	$ 41