Investments, Gross Gains and Losses, Available for Sale Securities (Details) - USD ($)	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Investments [Abstract]
Proceeds from sale of securities available-for-sale	$ 0	$ 5,045,000
Gross gains and losses on available-for-sale securities [Abstract]
Gross gains on available for sale securities	0	50,000
Gross losses on available for sale securities	0	0
Net gains	0	50,000
Equity securities [Abstract]
Net (losses) gains recognized in equity securities during the period	(45,000)	187,000
Less: Net gains realized on the sale of equity securities during the period	0	0
Net unrealized (losses) gains	(45,000)	$ 187,000
Investment securities pledged as collateral	$ 288,000,000.0		$ 295,000,000.0

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Amount of unrealized and realized gain (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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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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 unrealized and realized gain (loss) on 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 gain (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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Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Sum of the carrying amounts as of the date of the latest financial statement presented of securities which are owned but transferred to another party to serve as collateral to partially or fully secure a debt obligation, repurchase agreement or other current or potential obligation, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party.

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Amount of cash inflow from sale of 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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