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Borrowed Funds - Repurchase Agreements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Investment Securities
Borrowed funds
Investment securities held as collateral	$ 4,900	$ 10,400
Repurchase Agreements
Borrowed funds
Balance at end of year	4,821	10,037
Average balance during the year	5,662	10,987
Maximum month-end balance	$ 10,041	$ 12,680
Weighted-average rate during the year	0.02%	0.05%
Weighted-average rate at December 31	0.01%	0.06%

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