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Note 7 - Securities (Details Textual) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) shares | Jun. 30, 2018 USD ($)
Equity Securities, FV-NI | $ 979,000 | $ 950,000 |
Equity Securities, FV-NI, Unrealized Gain (Loss), Total | 29,000 | (21,000) |
Equity Securities, FV-NI, Gain (Loss), Total | $ 29,000 | $ 2,300,000 |
Mutual Fund [Member] |  |  |
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Total | 1 | 1 |
Equity Securities Unrealized Loss Cumulative Amount | $ 21,000 | $ 50,000 |
Equity Securities, FV-NI, Unrealized Gain (Loss), Total | (29,000) | (21,000) |
Visa Class B Stock [Member] |  |  |
Equity Securities, FV-NI, Gain (Loss), Total |  | $ 2,321,000 |
Number of Restricted Securities Hold | shares |  | 19,789 |
Equity Securities, FV-NI, Restricted |  |  | $ 0
Federal Home Loan Bank of Pittsburgh [Member] | FHLB Stock [Member] |  |  |
Other than Temporary Impairment Losses, Investments, Total | 0 | $ 0 |
Other Assets [Member] | Federal Home Loan Bank of Pittsburgh [Member] |  |  |
Federal Home Loan Bank Stock | 10,131,000 | 5,582,000 |
Investment Securities [Member] |  |  |
Debt Securities, Available-for-sale, Restricted | $ 215,270,000 | $ 229,418,000 |

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