Activity in the allowance for credit losses on unfunded commitments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Receivables [Abstract]
Balance at the beginning of period	$ 1,183	$ 183	$ 178	$ 146
Impact of adopting ASC 326			913
Subtotal	1,083		1,091
Provision (release) for credit losses	(10)		82
Balance at the end of period June 30, 2022	$ 1,173	187	$ 1,173	187
Other expense – unfunded commitments		$ 4		$ 41