Investment Securities, Equity Securities Changes in Fair Value Recognized in Net Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Debt and Equity Securities, FV-NI [Line Items]
Net losses recognized	$ (31)	$ (126)
Less net realized gains on equity securities sold	151	0
Net unrealized losses recognized and still held at period end	(182)	$ (126)
Equity Securities, Amortized Cost Basis	1,401		$ 2,207
Equity securities with a readily determinable fair value, at fair value	1,286		2,273
Mutual funds [Member]
Debt and Equity Securities, FV-NI [Line Items]
Equity Securities, Amortized Cost Basis	1,391		1,429
Equity securities with a readily determinable fair value, at fair value	1,219		1,234
Equity securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Equity Securities, Amortized Cost Basis	10		778
Equity securities with a readily determinable fair value, at fair value	$ 67		$ 1,039