Fair value - Recurring and non recurring basis (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	$ 7,900	$ 5,100
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	7,963	5,141
IRLC	406	471
Forward sales commitment	556	651
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
US Government Agencies	58,120	40,999
Mortgage-backed securities	59,638	40,495
Municipals	1,705	2,209
Subordinated debt	10,660	9,246
Loans held for sale	7,963	5,141
IRLC	406	471
Forward sales commitment	556	651
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	1,500	1,750
Fair Value, Measurements, Recurring [Member] | Reported Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
US Government Agencies	58,120	40,999
Mortgage-backed securities	59,638	40,495
Municipals	1,705	2,209
Subordinated debt	12,160	10,996
Loans held for sale	7,963	5,141
IRLC	406	471
Forward sales commitment	$ 556	$ 651