Securities (Details Textual)	3 Months Ended
Mar. 31, 2021 USD ($) Securities	Mar. 31, 2020 USD ($)
Schedule Of Available For Sale Securities [Line Items]
Proceeds from the sale of portfolio securities	$ 26,200,000	$ 15,100,000
Gross gains realized	406,000.0	256,000
Gross losses realized	$ 22,600	0
Number of securities \| Securities	767
Number of securities on unrealized loss position \| Securities	153
Allowance for credit losses on available-for-sale securities	$ 0
ASU 2016-01 \| Equity securities
Schedule Of Available For Sale Securities [Line Items]
Realized losses recognized in income statement for securities		$ 99,000
Realized gains recognized in income statement for securities	$ 105,000

Number of securities.

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Number of securities on unrealized loss position.

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Amount of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of realized gain from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of realized loss from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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