Note 5 - Other Real Estate Owned (Details) - Components of Net Expense of OREO - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Note 5 - Other Real Estate Owned (Details) - Components of Net Expense of OREO [Line Items]
Valuation adjustments	$ 118	$ 1,717	$ 130	$ 1,770
Total expense	148	1,865	248	2,031
Income from the operation of foreclosed properties	(1)	(47)	(1)	(50)
Net expense of OREO	147	1,818	247	1,981
Insurance Expense [Member]
Note 5 - Other Real Estate Owned (Details) - Components of Net Expense of OREO [Line Items]
OREO expense, gross	18	13	32	40
Legal Fees Expense [Member]
Note 5 - Other Real Estate Owned (Details) - Components of Net Expense of OREO [Line Items]
OREO expense, gross	19	15	39	24
Maintenance Expense [Member]
Note 5 - Other Real Estate Owned (Details) - Components of Net Expense of OREO [Line Items]
OREO expense, gross	3	5	3	15
Professional Fees Expense [Member]
Note 5 - Other Real Estate Owned (Details) - Components of Net Expense of OREO [Line Items]
OREO expense, gross	1	68	1	78
Real Estate Taxes Expense [Member]
Note 5 - Other Real Estate Owned (Details) - Components of Net Expense of OREO [Line Items]
OREO expense, gross	(13)	46	13	95
Utilities Expense [Member]
Note 5 - Other Real Estate Owned (Details) - Components of Net Expense of OREO [Line Items]
OREO expense, gross	3	$ 1	13	4
Other OREO Expense [Member]
Note 5 - Other Real Estate Owned (Details) - Components of Net Expense of OREO [Line Items]
OREO expense, gross	$ (1)		$ 17	$ 5