Note 10 - Long-term Debt (Details Textual) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Long-term Federal Home Loan Bank Advances, Current	$ 5,000,000	$ 0
Long-term Federal Home Loan Bank Advances	15,000,000	5,000,000
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	21,100,000	14,000,000
Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds	$ 160,400,000	$ 152,500,000

The current portion of Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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Amount of advances or credit lines available from the Federal Home Loan Bank (FHLB).

+ References

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Amount of the collateral pledged in support of federal home loan bank advances outstanding.

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Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.

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