Investment Securities - Other information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($) security	Jun. 30, 2021 USD ($) security	Jun. 30, 2022 USD ($) security	Jun. 30, 2021 USD ($) security	Dec. 31, 2021 USD ($)
Investment holdings
Number of investment securities sold | security	0	0	0	10
Net gain (loss) on sale of investment securities				$ 14
Number of securities either matured or called | security	0	4	1	7
Net gain (loss) on securities either matured or called		$ 6	$ 0	$ 6
Realized gain (loss) on equity securities	$ (62)	$ 5	(151)	$ (29)
Secured Credit
Investment holdings
Amortized cost	4		4		$ 4
Fair value	4		4		5
Secured Credit | Asset Pledged as Collateral
Investment holdings
Amortized cost	10,700		10,700		11,100
Fair value	$ 9,500		$ 9,500		$ 11,200