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Investments (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) item	Dec. 31, 2021 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Number of investments in a single issuer exceeds 10% of shareholders' equity | item	0
Percent of shareholders equity benchmark for investments in a single issuer	10.00%
Number of equity investments | item	1
Equity securities	$ 411	$ 481
Debt securities available for sale, at fair value	486,836	529,811
Corporate [Member]
Schedule of Available-for-sale Securities [Line Items]
Debt securities available for sale, at fair value	24,239	24,939
Public Funds And Trust Deposits [Member]
Schedule of Available-for-sale Securities [Line Items]
Debt securities available for sale, at fair value	$ 208,900	$ 160,300

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