Note 7 - Fair Value Measurements (Details) (USD $)	3 Months Ended		9 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended	9 Months Ended				3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2014 Impaired Loan [Member] Fair Value, Inputs, Level 3 [Member] Minimum [Member]	Jun. 30, 2014 Impaired Loan [Member] Fair Value, Inputs, Level 3 [Member] Maximum [Member]	Sep. 30, 2013 Impaired Loan [Member]	Jun. 30, 2014 Impaired Loan [Member]	Sep. 30, 2014 Impaired Loan [Member]	Sep. 30, 2013 Impaired Loan [Member]	Sep. 30, 2014 Foreclosed Real Estate [Member] Fair Value, Inputs, Level 3 [Member] Minimum [Member]	Sep. 30, 2014 Foreclosed Real Estate [Member] Fair Value, Inputs, Level 3 [Member] Maximum [Member]	Sep. 30, 2013 Foreclosed Real Estate [Member]	Sep. 30, 2013 Foreclosed Real Estate [Member]
Note 7 - Fair Value Measurements (Details) [Line Items]
Fair Value Inputs Estimated Selling Costs					10.00%	48.00%					0.00%	10.00%
Provision for Loan and Lease Losses	$ 75,000	$ 100,000	$ 190,000	$ 575,000			$ 284,000	$ 37,000	$ 16,000	$ 329,000
Fair Value Inputs, Discount Rate											10.00%	38.00%
SEC Schedule III, Real Estate, Write-down or Reserve, Amount	$ 0		$ 0										$ 10,000	$ 32,000