Fair value - Recurring and non recurring basis (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	$ 8,200	$ 5,000
Reported Value Measurement | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	8,236	4,983
IRLC	237	271
Forward sales commitment	22	506
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
U.S. Government Agencies	640	20,615
Mortgage-backed securities	70,206	72,537
Municipals	1,670	1,656
Subordinated debt	10,108	10,277
Loans held for sale	8,236	4,983
IRLC	237	271
Forward sales commitment	22	506
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Subordinated debt	500	500
Fair Value, Measurements, Recurring | Reported Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
U.S. Government Agencies	640	20,615
Mortgage-backed securities	70,206	72,537
Municipals	1,670	1,656
Subordinated debt	10,608	10,777
Loans held for sale	8,236	4,983
IRLC	237	271
Forward sales commitment	$ 22	$ 506