Note 2 - Securities (Details) - Securities with Unrealized Losses Aggregated by Investment Category and Length of Time (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Note 2 - Securities (Details) - Securities with Unrealized Losses Aggregated by Investment Category and Length of Time [Line Items]
Securities-Less than 12 months-Fair Value	$ 45,542,000	$ 58,767,000
Securities-Less than 12 months-Unrealized Loss	(2,555,000)	(5,833,000)
Securities-More than 12 months-Fair Value	42,828,000	29,679,000
Securities-More than 12 months-Unrealized Loss	(5,096,000)	(4,267,000)
Securities- Fair Value	88,370,000	88,446,000
Securities- Unrealized Loss	(7,651,000)	(10,100,000)
US Government Agencies Debt Securities [Member]
Note 2 - Securities (Details) - Securities with Unrealized Losses Aggregated by Investment Category and Length of Time [Line Items]
Securities-Less than 12 months-Fair Value	44,172,000	57,117,000
Securities-Less than 12 months-Unrealized Loss	(2,532,000)	(5,798,000)
Securities-More than 12 months-Fair Value	42,828,000	29,679,000
Securities-More than 12 months-Unrealized Loss	(5,096,000)	(4,267,000)
Securities- Fair Value	87,000,000	86,796,000
Securities- Unrealized Loss	(7,628,000)	(10,065,000)
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Note 2 - Securities (Details) - Securities with Unrealized Losses Aggregated by Investment Category and Length of Time [Line Items]
Securities-Less than 12 months-Fair Value	0	0
Securities-Less than 12 months-Unrealized Loss	0	0
Securities-More than 12 months-Fair Value	0	0
Securities-More than 12 months-Unrealized Loss	0	0
Securities- Fair Value	0	0
Securities- Unrealized Loss	0	0
Municipal General Obligation Bonds [Member]
Note 2 - Securities (Details) - Securities with Unrealized Losses Aggregated by Investment Category and Length of Time [Line Items]
Securities-Less than 12 months-Fair Value	0	295,000
Securities-Less than 12 months-Unrealized Loss	0	(4,000)
Securities-More than 12 months-Fair Value	0	0
Securities-More than 12 months-Unrealized Loss	0	0
Securities- Fair Value	0	295,000
Securities- Unrealized Loss	0	(4,000)
Municipal Revenue Bonds [Member]
Note 2 - Securities (Details) - Securities with Unrealized Losses Aggregated by Investment Category and Length of Time [Line Items]
Securities-Less than 12 months-Fair Value	0	0
Securities-Less than 12 months-Unrealized Loss	0	0
Securities-More than 12 months-Fair Value	0	0
Securities-More than 12 months-Unrealized Loss	0	0
Securities- Fair Value	0	0
Securities- Unrealized Loss	0	0
Mutual Funds [Member]
Note 2 - Securities (Details) - Securities with Unrealized Losses Aggregated by Investment Category and Length of Time [Line Items]
Securities-Less than 12 months-Fair Value	1,370,000	1,355,000
Securities-Less than 12 months-Unrealized Loss	(23,000)	(31,000)
Securities-More than 12 months-Fair Value	0	0
Securities-More than 12 months-Unrealized Loss	0	0
Securities- Fair Value	1,370,000	1,355,000
Securities- Unrealized Loss	$ (23,000)	$ (31,000)