Note 3 - Loans (Details) - TDR Payment Defaults Six Months Ended (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 3 - Loans (Details) - TDR Payment Defaults Six Months Ended [Line Items]
Number of Loans	3	3	4	4
Recorded Investments (in Dollars)	$ 579	$ 495	$ 585	$ 603
Commercial real estate lending [Member] | TDR Defaults [Member]
Note 3 - Loans (Details) - TDR Payment Defaults Six Months Ended [Line Items]
Number of Loans			1
Recorded Investments (in Dollars)			3
Builder Line Lending [Member] | TDR Defaults [Member]
Note 3 - Loans (Details) - TDR Payment Defaults Six Months Ended [Line Items]
Number of Loans		1		1
Recorded Investments (in Dollars)		88		88
Commercial Business Lending [Member] | TDR Defaults [Member]
Note 3 - Loans (Details) - TDR Payment Defaults Six Months Ended [Line Items]
Number of Loans		3		3
Recorded Investments (in Dollars)		363		363
TDR Defaults [Member]
Note 3 - Loans (Details) - TDR Payment Defaults Six Months Ended [Line Items]
Number of Loans		4	1	4
Recorded Investments (in Dollars)		$ 451	$ 3	$ 451