Debt and Equity Securities - Length of time individual available-for-sale securities have been in a continuous unrealized loss position (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Fair Value
Less than 12 Months	$ 7,907	$ 11,407
12 Months or More	21,955	20,650
Total Fair Value	29,862	32,057
Unrealized Losses
Less than 12 Months	(17)	(148)
12 Months or More	(2,225)	(2,301)
Total Unrealized Losses	(2,242)	(2,449)
Agency bonds
Fair Value
Less than 12 Months	2,992	0
12 Months or More	19,281	19,117
Total Fair Value	22,273	19,117
Unrealized Losses
Less than 12 Months	(6)	0
12 Months or More	(1,963)	(2,126)
Total Unrealized Losses	(1,969)	(2,126)
Treasury securities
Fair Value
Less than 12 Months	4,915	9,928
12 Months or More	0	0
Total Fair Value	4,915	9,928
Unrealized Losses
Less than 12 Months	(11)	(42)
12 Months or More	0	0
Total Unrealized Losses	(11)	(42)
Collateralized mortgage obligations
Fair Value
Less than 12 Months	0	1,479
12 Months or More	2,674	1,533
Total Fair Value	2,674	3,012
Unrealized Losses
Less than 12 Months	0	(106)
12 Months or More	(262)	(175)
Total Unrealized Losses	$ (262)	$ (281)