Note 5 - Income Taxes (Details) - Income Tax Expense (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Expense [Abstract]
Current	$ 7,169	$ 5,488	$ 4,018
Deferred	195	1,140	1,170
Total	7,364	6,628	5,188
Current	716	684	606
Deferred	(7)	(6)	(1)
Total	709	678	605
Current	1,020	787	609
Deferred	(89)	(954)	194
Total	931	(167)	803
Total	$ 9,004	$ 7,139	$ 6,596