Note 9 - Components of Accumulated Other Comprehensive Loss (Details) - Reclassifications Out of Accumulated Other Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Reclassifications out of unrealized gains and losses on available-for-sale securities:
Realized securities gains, net		$ 9		$ 18
Income tax expense	0	3	0	6
Realized gains and losses on available-for-sale securities, net of tax, reclassified out of accumulated other comprehensive income		$ 6		$ 12