Note 6 - Past Due Loans, Allowance For Credit Losses, and Impaired Loans (Details) - TDRs That Defaulted Within Twelve Months of the Restructured Date (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Note 6 - Past Due Loans, Allowance For Credit Losses, and Impaired Loans (Details) - TDRs That Defaulted Within Twelve Months of the Restructured Date [Line Items]
Number of loans	1	1	4	2
Recorded investment (in Dollars)	$ 198	$ 220	$ 704	$ 282
Commercial Loan [Member]
Note 6 - Past Due Loans, Allowance For Credit Losses, and Impaired Loans (Details) - TDRs That Defaulted Within Twelve Months of the Restructured Date [Line Items]
Number of loans			1
Recorded investment (in Dollars)			350
Residential Mortgage [Member]
Note 6 - Past Due Loans, Allowance For Credit Losses, and Impaired Loans (Details) - TDRs That Defaulted Within Twelve Months of the Restructured Date [Line Items]
Number of loans	0			1
Recorded investment (in Dollars)	0			62
Office Retail And Industrial [Member]
Note 6 - Past Due Loans, Allowance For Credit Losses, and Impaired Loans (Details) - TDRs That Defaulted Within Twelve Months of the Restructured Date [Line Items]
Number of loans		1		1
Recorded investment (in Dollars)		220		220
Other Commercial Real Estate [Member]
Note 6 - Past Due Loans, Allowance For Credit Losses, and Impaired Loans (Details) - TDRs That Defaulted Within Twelve Months of the Restructured Date [Line Items]
Number of loans	1	0	3
Recorded investment (in Dollars)	$ 198	$ 0	$ 354