Note 9 - Fair Value Measurement (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Note 9 - Fair Value Measurement (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Investment Securities	$ 84,304	$ 90,343
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Note 9 - Fair Value Measurement (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Investment Securities	6,967	27,097
US Government-sponsored Enterprises Debt Securities [Member]
Note 9 - Fair Value Measurement (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Investment Securities	6,967	27,097
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Inputs, Level 2 [Member]
Note 9 - Fair Value Measurement (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Investment Securities	66,700	61,875
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Note 9 - Fair Value Measurement (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Investment Securities	66,700	61,875
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Note 9 - Fair Value Measurement (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Investment Securities	10,137	1,371
US States and Political Subdivisions Debt Securities [Member]
Note 9 - Fair Value Measurement (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Investment Securities	10,137	1,371
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Note 9 - Fair Value Measurement (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Investment Securities	500
Corporate Debt Securities [Member]
Note 9 - Fair Value Measurement (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Investment Securities	500
Fair Value, Inputs, Level 2 [Member]
Note 9 - Fair Value Measurement (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Investment Securities	$ 84,304	$ 90,343