Note 7 - Fair Value Measurement (Details) - Fair Value of Financial Assets and Liabililties Measure on Non-Recurring Basis (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
Note 7 - Fair Value Measurement (Details) - Fair Value of Financial Assets and Liabililties Measure on Non-Recurring Basis [Line Items]
Impaired loans, net of valuation allowance	$ 6	$ 306
Other real estate owned	8,686	8,143	8,400	8,938
Fair Value, Inputs, Level 2 [Member]
Note 7 - Fair Value Measurement (Details) - Fair Value of Financial Assets and Liabililties Measure on Non-Recurring Basis [Line Items]
Other real estate owned	3,475	3,745
Fair Value, Inputs, Level 3 [Member]
Note 7 - Fair Value Measurement (Details) - Fair Value of Financial Assets and Liabililties Measure on Non-Recurring Basis [Line Items]
Impaired loans, net of valuation allowance	6	306
Other real estate owned	$ 5,211	$ 4,398