Note 7 - Other Comprehensive Income (Detail) - Components of Other Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Before Tax	$ (1,579)	$ 179
Tax Effect	(635)	65
Net of Tax	(944)	114
Before Tax	(23)	(153)
Tax Effect	(10)	(61)
Net of Tax	(13)	(92)
Before Tax	(1,602)	26
Tax Effect	(645)	4
Net of Tax	$ (957)	$ 22