Note 4 - Investment Securities Available for Sale (Details) - Ratings by Segment of Investment Securities Available for Sale	Dec. 31, 2013
State and Municipal [Member]
Note 4 - Investment Securities Available for Sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available for sale securities fair value Moody's credit rating	100.00%
Available for sale securities fair value Standord and Poor's credit rating	100.00%
State and Municipal [Member] | Moody's, Aa1 - A1 Rating [Member]
Note 4 - Investment Securities Available for Sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available for sale securities fair value Moody's credit rating	77.00%
State and Municipal [Member] | Moody's, Baa1 Rating [Member]
Note 4 - Investment Securities Available for Sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available for sale securities fair value Moody's credit rating	6.00%
State and Municipal [Member] | Not Rated [Member]
Note 4 - Investment Securities Available for Sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available for sale securities fair value Moody's credit rating	17.00%
Collateralized Mortgage Obligations (Federal Agencies) [Member]
Note 4 - Investment Securities Available for Sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available for sale securities fair value Moody's credit rating	100.00%
Available for sale securities fair value Standord and Poor's credit rating	100.00%
Collateralized Mortgage Obligations (Federal Agencies) [Member] | Moody's, Aaa Rating [Member]
Note 4 - Investment Securities Available for Sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available for sale securities fair value Moody's credit rating	100.00%
Other Mortgage-Backed (Federal Agencies) [Member]
Note 4 - Investment Securities Available for Sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available for sale securities fair value Moody's credit rating	100.00%
Available for sale securities fair value Standord and Poor's credit rating	100.00%
Other Mortgage-Backed (Federal Agencies) [Member] | Moody's, Aaa Rating [Member]
Note 4 - Investment Securities Available for Sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available for sale securities fair value Moody's credit rating	100.00%
SBA Loan-Backed (Federal Agencies) [Member]
Note 4 - Investment Securities Available for Sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available for sale securities fair value Moody's credit rating	100.00%
Available for sale securities fair value Standord and Poor's credit rating	100.00%
SBA Loan-Backed (Federal Agencies) [Member] | Moody's, Aaa Rating [Member]
Note 4 - Investment Securities Available for Sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available for sale securities fair value Moody's credit rating	100.00%
Standard & Poor's, AAA Rating [Member] | Other Mortgage-Backed (Federal Agencies) [Member]
Note 4 - Investment Securities Available for Sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available for sale securities fair value Moody's credit rating	2.00%
Standard & Poor's, A+ Rating [Member] | Collateralized Mortgage Obligations (Federal Agencies) [Member]
Note 4 - Investment Securities Available for Sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available for sale securities fair value Standord and Poor's credit rating	100.00%
Standard & Poor's, A+ Rating [Member] | Other Mortgage-Backed (Federal Agencies) [Member]
Note 4 - Investment Securities Available for Sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available for sale securities fair value Standord and Poor's credit rating	98.00%
Standard & Poor's, A+ Rating [Member] | SBA Loan-Backed (Federal Agencies) [Member]
Note 4 - Investment Securities Available for Sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available for sale securities fair value Standord and Poor's credit rating	100.00%
Standard & Poor's Aa - Aa- [Member] | State and Municipal [Member]
Note 4 - Investment Securities Available for Sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available for sale securities fair value Standord and Poor's credit rating	33.00%
Not Rated [Member] | State and Municipal [Member]
Note 4 - Investment Securities Available for Sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available for sale securities fair value Standord and Poor's credit rating	67.00%