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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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+ References

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-SubTopic 10
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-Publisher FASB
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Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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