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Securities (Narrative) (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2024 USD ($) security	Mar. 31, 2023 USD ($)	Dec. 31, 2023 security
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities impairment recognized in accumulated other comprehensive income (loss) | $	$ 0	$ 0
Sales of securities | $	$ 0	$ 0
Holdings of securities greater than 10% of stockholders' equity	0		0
Minimum percentage of securities held	10.00%		10.00%
Corporate Debt [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of securities	1		1
Mortgage-Backed Securities - Residential [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of securities	1		1
U.S. Treasury [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of securities	1		2

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