Note 4 - Investment Securities Available-for-sale (Details) - Ratings by Segment of Investment Securities Available for Sale	Sep. 30, 2014
Note 4 - Investment Securities Available-for-sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available For Sale Securities: Moody's Credit Rating	100.00%
Available For Sale Securities: Standard Poors Credit Rating	100.00%
Standard and Poor's AA+ - AA- [Member]
Note 4 - Investment Securities Available-for-sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available For Sale Securities: Standard Poors Credit Rating	49.00%
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: Standard Poors Credit Rating	51.00%
Moody's Aa1 - Aa3 [Member]
Note 4 - Investment Securities Available-for-sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available For Sale Securities: Moody's Credit Rating	65.00%
Moody's A1-A2 [Member]
Note 4 - Investment Securities Available-for-sale (Details) - Ratings by Segment of Investment Securities Available for Sale [Line Items]
Available For Sale Securities: Moody's Credit Rating	16.00%
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: Moody's Credit Rating	19.00%