Loans - Amortized cost basis of loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Financing Receivable, Modified [Line Items]
Amortized Cost	$ 183	$ 3,554	$ 183	$ 3,554
% of Total Class of Loans	0.00%	0.20%	0.00%	0.20%
Term Extension
Financing Receivable, Modified [Line Items]
Amortized Cost	$ 69	$ 3,554	$ 69	$ 3,554
% of Total Class of Loans	0.20%		0.20%
Interest Rate Reduction
Financing Receivable, Modified [Line Items]
Amortized Cost	$ 114		$ 114
% of Total Class of Loans	0.00%		0.00%
Builder lines \| Term Extension
Financing Receivable, Modified [Line Items]
Amortized Cost	$ 69		$ 69
% of Total Class of Loans	0.20%		0.20%
Residential mortgage \| Interest Rate Reduction
Financing Receivable, Modified [Line Items]
Amortized Cost	$ 114		$ 114
% of Total Class of Loans	0.00%		0.00%
Commercial real estate \| Term Extension
Financing Receivable, Modified [Line Items]
Amortized Cost		$ 3,554		$ 3,554
% of Total Class of Loans		0.50%		0.50%