Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Restructured Loans that Defaulted (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Consumer Real Estate
Number of contracts	0	5	0	6
Principal balance		$ 941		$ 1,134
Consumer Real Estate Loans [Member] | Closed-end First Liens [Member]
Consumer Real Estate
Number of contracts		1		1
Principal balance		74		74
Consumer Real Estate Loans [Member] | Closed-end Junior Liens [Member]
Consumer Real Estate
Number of contracts		1		1
Principal balance		60		60
Commercial Real Estate Loans [Member] | Commercial Real Estate, Owner Occupied [Member]
Consumer Real Estate
Number of contracts		2		3
Principal balance		670		863
Commercial Non Real Estate [Member] | Commercial and Industrial [Member]
Consumer Real Estate
Number of contracts		1		1
Principal balance		$ 137		$ 137