Note 8 - Federal Home Loan Bank Advances and Repurchase Agreements (Details Textual) - USD ($) |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Maximum Balance of Repurchase Agreements | $ 0 | $ 15,000,000 |
| Weighted Average Interest Rate on Repurchase Agreements | 4.65% | |
| US Government Agencies Securities, at Carrying Value | $ 16,960,000 | |
| Federal Home Loan Bank of Indianapolis [Member] | ||
| Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds | $ 20,000,000 | $ 20,000,000 |
| Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End | 0.90% | 0.58% |
| Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged | $ 21,431,000 | $ 26,437,000 |
| Advances from Federal Home Loan Banks | $ 0 | $ 0 |