Note 4 - Loans and Allowance for Loan Losses (Details) - Loans Restructured as TDRs, Excluding Loans Acquired, Segregated by Class of Loans (USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2013
Commercial:
Number of Loans	1	2	1
Balance Proir to TDR	$ 599,000	$ 1,630,000	$ 321,000
Balance	599,000	1,630,000	318,000
Change in Maturity Date [Member] | Commercial [Member] | Commercial Loans [Member]
Commercial:
Financial Impact	599,000
Change in Maturity Date [Member] | Single Family Residential Loans [Member] | Real Estate Loans [Member]
Commercial:
Financial Impact		1,031,000
Change in Maturity Date [Member] | Commercial Loans [Member]
Commercial:
Financial Impact	599,000
Change in Maturity Date [Member] | Real Estate Loans [Member]
Commercial:
Financial Impact		1,031,000
Change in Maturity Date [Member]
Commercial:
Financial Impact	599,000
Change in Rate [Member] | Other Commercial Real Estate Loans [Member] | Real Estate Loans [Member]
Commercial:
Financial Impact			318,000
Change in Rate [Member] | Real Estate Loans [Member]
Commercial:
Financial Impact			318,000
Change in Rate [Member]
Commercial:
Financial Impact			318,000
Commercial [Member] | Commercial Loans [Member]
Commercial:
Number of Loans	1	1
Balance Proir to TDR	599,000	599,000
Balance	599,000	599,000
Single Family Residential Loans [Member] | Real Estate Loans [Member]
Commercial:
Number of Loans		1
Balance Proir to TDR		1,031,000
Balance		1,031,000
Other Commercial Real Estate Loans [Member] | Real Estate Loans [Member]
Commercial:
Number of Loans			1
Balance Proir to TDR			321,000
Balance			318,000
Commercial Loans [Member]
Commercial:
Number of Loans	1	1
Balance Proir to TDR	599,000	599,000
Balance	599,000	599,000
Real Estate Loans [Member]
Commercial:
Number of Loans		1	1
Balance Proir to TDR		1,031,000	321,000
Balance		$ 1,031,000	$ 318,000