Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 93,970	$ 168,767
Other comprehensive loss, net of tax	469	(1,056)
Ending balance	75,966	147,243
Unrealized gains (losses) on available-for-sale securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,254)	(391)
Other comprehensive loss, net of tax	490	(1,056)
Ending balance	(764)	(1,447)
Change in fair value due to instrument-specific credit risk
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(25)	0
Other comprehensive loss, net of tax	(21)	0
Ending balance	(46)	0
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,279)	(391)
Ending balance	$ (810)	$ (1,447)