Activity in the allowance for credit losses on unfunded commitments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Receivables [Abstract]
Balance at the beginning of period December 31, 2021	$ 178	$ 146
Impact of adopting ASC 326	913
Subtotal	1,091
Provision for credit losses	92
Balance at the end of period March 31, 2022	$ 1,183	183
Other expense – unfunded commitments		$ 37