Fair value - Recurring and non recurring basis (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	$ 6,900	$ 2,300
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	6,887	2,268
IRLC	205	142
Forward sales commitment	370	207
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
U.S. Government Agencies	61,490	60,902
Mortgage-backed securities	57,876	60,560
Municipals	1,667	1,550
Subordinated debt	9,154	8,841
Loans held for sale	6,887	2,268
IRLC	205	142
Forward sales commitment	370	207
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Subordinated debt	2,048	2,000
Fair Value, Measurements, Recurring [Member] | Reported Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
U.S. Government Agencies	61,490	60,902
Mortgage-backed securities	57,876	60,560
Municipals	1,667	1,550
Subordinated debt	11,202	10,841
Loans held for sale	6,887	2,268
IRLC	205	142
Forward sales commitment	$ 370	$ 207