Investments, Gross Gains and Losses, Available for Sale Securities (Details) - USD ($)	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Investments [Abstract]
Proceeds from sale of securities available-for-sale	$ 24,153,000	$ 13,145,000	$ 29,198,000	$ 18,621,000
Gross gains and losses on available-for-sale securities [Abstract]
Gross gains on available for sale securities	252,000	192,000	302,000	309,000
Gross losses on available for sale securities	(90,000)	(7,000)	(90,000)	(7,000)
Net gains	162,000	185,000	212,000	302,000
Equity securities [Abstract]
Net gains (losses) recognized in equity securities during the period	72,000	(33,000)	288,000	(276,000)
Less: Net gains realized on the sale of equity securities during the period	0	68,000	0	68,000
Net unrealized gains (losses)	72,000	$ (101,000)	288,000	$ (344,000)
Investment securities pledged as collateral	$ 288,100,000		$ 288,100,000		$ 245,400,000

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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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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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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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