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Note 3 - Securities (Details) - Debt Securities by Maturity | Dec. 31, 2015 USD ($)
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Note 3 - Securities (Details) - Debt Securities by Maturity [Line Items] |
Due in one year or less | 0.89%
Due in one year or less | $ 40,382,000
Due in one year or less | $ 40,399,000
Due from one to five years | 1.67%
Due from one to five years | $ 110,364,000
Due from one to five years | $ 110,552,000
Due from five to ten years | 3.09%
Due from five to ten years | $ 54,022,000
Due from five to ten years | $ 54,868,000
Due after ten years | 3.55%
Due after ten years | $ 71,412,000
Due after ten years | $ 72,158,000
| 2.22%
| $ 344,796,000
| $ 346,992,000
Collateralized Mortgage Backed Securities [Member] |
Note 3 - Securities (Details) - Debt Securities by Maturity [Line Items] |
No single maturity, weighted average yield | 1.75%
No single maturity, amortized cost | $ 66,670,000
No single maturity, fair value | $ 67,074,000
Other Debt Obligations [Member] |
Note 3 - Securities (Details) - Debt Securities by Maturity [Line Items] |
No single maturity, weighted average yield | 2.51%
No single maturity, amortized cost | $ 1,946,000
No single maturity, fair value | $ 1,941,000

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