Note 4 - Securities (Details) - Securities with Unrealized Losses not Recognized in Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Note 4 - Securities (Details) - Securities with Unrealized Losses not Recognized in Income [Line Items]
Available for Sale Securities with Unrealized Losses, Less than 12 Months, Fair Value	$ 97,113	$ 47,271
Available for Sale Securities with Unrealized Losses, Less than 12 Months, Unrealized Losses	(1,683)	(163)
Available for Sale Securities with Unrealized Losses, 12 Months or More, Fair Value	32,167	1,816
Available for Sale Securities with Unrealized Losses, 12 Months or More, Unrealized Losses	(450)	(7)
Available for Sale Securities with Unrealized Losses, Fair Value	129,280	49,087
Available for Sale Securities with Unrealized Losses, Unrealized Losses	(2,133)	(170)
US Government Agencies Debt Securities [Member]
Note 4 - Securities (Details) - Securities with Unrealized Losses not Recognized in Income [Line Items]
Available for Sale Securities with Unrealized Losses, Less than 12 Months, Fair Value	23,077	10,135
Available for Sale Securities with Unrealized Losses, Less than 12 Months, Unrealized Losses	(237)	(15)
Available for Sale Securities with Unrealized Losses, 12 Months or More, Fair Value	9,836	0
Available for Sale Securities with Unrealized Losses, 12 Months or More, Unrealized Losses	(48)	0
Available for Sale Securities with Unrealized Losses, Fair Value	32,913	10,135
Available for Sale Securities with Unrealized Losses, Unrealized Losses	(285)	(15)
US States and Political Subdivisions Debt Securities [Member]
Note 4 - Securities (Details) - Securities with Unrealized Losses not Recognized in Income [Line Items]
Available for Sale Securities with Unrealized Losses, Less than 12 Months, Fair Value	53,185	17,141
Available for Sale Securities with Unrealized Losses, Less than 12 Months, Unrealized Losses	(1,176)	(93)
Available for Sale Securities with Unrealized Losses, 12 Months or More, Fair Value	14,085	582
Available for Sale Securities with Unrealized Losses, 12 Months or More, Unrealized Losses	(337)	(2)
Available for Sale Securities with Unrealized Losses, Fair Value	67,270	17,723
Available for Sale Securities with Unrealized Losses, Unrealized Losses	(1,513)	(95)
Mortgage-backed Securities, Issued by Private Enterprises [Member]
Note 4 - Securities (Details) - Securities with Unrealized Losses not Recognized in Income [Line Items]
Available for Sale Securities with Unrealized Losses, Less than 12 Months, Fair Value	16,719	0
Available for Sale Securities with Unrealized Losses, Less than 12 Months, Unrealized Losses	(235)	0
Available for Sale Securities with Unrealized Losses, 12 Months or More, Fair Value	0	513
Available for Sale Securities with Unrealized Losses, 12 Months or More, Unrealized Losses	0	(2)
Available for Sale Securities with Unrealized Losses, Fair Value	16,719	513
Available for Sale Securities with Unrealized Losses, Unrealized Losses	(235)	(2)
Collateralized Mortgage Obligations [Member]
Note 4 - Securities (Details) - Securities with Unrealized Losses not Recognized in Income [Line Items]
Available for Sale Securities with Unrealized Losses, Less than 12 Months, Fair Value	4,132	19,995
Available for Sale Securities with Unrealized Losses, Less than 12 Months, Unrealized Losses	(35)	(55)
Available for Sale Securities with Unrealized Losses, 12 Months or More, Fair Value	8,246	721
Available for Sale Securities with Unrealized Losses, 12 Months or More, Unrealized Losses	(65)	(3)
Available for Sale Securities with Unrealized Losses, Fair Value	12,378	20,716
Available for Sale Securities with Unrealized Losses, Unrealized Losses	$ (100)	$ (58)