Note 3 - Securities (Details) - Securities Held to Maturity with Unrealized Losses (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Note 3 - Securities (Details) - Securities Held to Maturity with Unrealized Losses [Line Items]
Less Than 12 Months - Fair Value	$ 7,972	$ 2,018
Less Than 12 Months- Unrecognized Loss	(450)	(63)
12 Months or More - Fair Value	234	260
12 Months or More - Unrecognized Loss	(28)	(2)
Total - Fair Value	8,176	2,278
Total - Unrecognized Loss	(478)	(65)
US States and Political Subdivisions Debt Securities [Member]
Note 3 - Securities (Details) - Securities Held to Maturity with Unrealized Losses [Line Items]
Less Than 12 Months - Fair Value	7,942	2,018
Less Than 12 Months- Unrecognized Loss	(450)	(63)
12 Months or More - Fair Value	234	260
12 Months or More - Unrecognized Loss	(28)	(2)
Total - Fair Value	8,176	2,278
Total - Unrecognized Loss	$ (478)	$ (65)