Note 15 - Assets and Liabilities Measured and Reported at Fair Value (Details) - Assets Measured at Fair Value On a Non-recurring Basis - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Note 15 - Assets and Liabilities Measured and Reported at Fair Value (Details) - Assets Measured at Fair Value On a Non-recurring Basis [Line Items]
Other real estate owned	$ 12	$ (7)	$ (153)	$ 342
Fair Value, Measurements, Nonrecurring [Member]
Note 15 - Assets and Liabilities Measured and Reported at Fair Value (Details) - Assets Measured at Fair Value On a Non-recurring Basis [Line Items]
Impaired loans	5,132		5,132		$ 6,449
Impaired loans	(1,148)	(1,147)	(1,148)	(1,147)
Other real estate owned	3,569		3,569		5,032
Other real estate owned			(25)
Total	8,701		8,701		11,481
Total	(1,173)	$ (1,147)	(1,173)	$ (1,147)
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Note 15 - Assets and Liabilities Measured and Reported at Fair Value (Details) - Assets Measured at Fair Value On a Non-recurring Basis [Line Items]
Impaired loans	5,132		5,132		6,449
Other real estate owned	3,569		3,569		5,032
Total	$ 8,701		$ 8,701		$ 11,481