Note 6 - Investments Schedule of Unrealized Losses (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014 security	Jun. 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	36		5
Fair value HTM And AFS state and municipal obligations	98,237		19,903
Unrealized losses AFS And HTM state and municipal obligations	774		99
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	4		4
Fair value HTM And AFS state and municipal obligations	8,650		8,480
Unrealized Losses AFS And HTM state and municipal obligations	637		1,018
Continuous Loss Position, Total
Number of securities	40		9
Fair Value HTM And AFS state and municipal obligations	106,887		28,383
Unrealized losses AFS and HTM state and municipal obligations	1,411		1,117
US government and agency securities
Continuous Loss Position Less Than Twelve Months
Number of Securities	1		1
Fair value available-for-sale securities	5,455		5,401
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInAOCI	14		57
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	0		0
Fair value available-for-sale securities	0		0
AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInAOCI	0		0
Continuous Loss Position, Total
Number of securities	1		1
Fair value available-for-sale securities	5,455		5,401
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInAOCI	14		57
State and municipal obligations
Continuous Loss Position Less Than Twelve Months
Number of Securities	0		4
Fair value HTM And AFS state and municipal obligations	0		14,502
Unrealized losses AFS And HTM state and municipal obligations	0		42
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	2		2
Fair value HTM And AFS state and municipal obligations	5,722		5,514
Unrealized Losses AFS And HTM state and municipal obligations	19		534
Continuous Loss Position, Total
Number of securities	2		6
Fair Value HTM And AFS state and municipal obligations	5,722		20,016
Unrealized losses AFS and HTM state and municipal obligations	19		576
Corporate bonds and notes
Continuous Loss Position Less Than Twelve Months
Number of Securities	13		0
Fair value available-for-sale securities	11,046		0
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInAOCI	47		0
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	2		2
Fair value available-for-sale securities	2,928		2,966
AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInAOCI	618		484
Continuous Loss Position, Total
Number of securities	15		2
Fair value available-for-sale securities	13,974		2,966
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInAOCI	665		484
Other ABS
Continuous Loss Position Less Than Twelve Months
Number of Securities	19
Fair value available-for-sale securities	80,266
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInAOCI	708
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	0
Fair value available-for-sale securities	0
AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInAOCI	0
Continuous Loss Position, Total
Number of securities	19
Fair value available-for-sale securities	80,266
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInAOCI	708
Foreign government securities
Continuous Loss Position Less Than Twelve Months
Number of Securities	3
Fair value available-for-sale securities	1,470
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInAOCI	5
Continuous Unrealized Loss Position, Twelve Months Or Greater
Number of securities	0
Fair value available-for-sale securities	0
AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInAOCI	0
Continuous Loss Position, Total
Number of securities	3
Fair value available-for-sale securities	1,470
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInAOCI	$ 5