Fair value - Recurring and non recurring basis (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	$ 5,100	$ 34,400
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	5,141	34,421
IRLC	471	1,552
Financial Liabilities-Recurring Forward sales commitment	651	3,105
Reported Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned		336
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	40,999	8,142
Mortgage-backed securities	40,495	24,006
Municipals	2,209
Subordinated debt	9,246	8,446
Loans held for sale	5,141	34,421
IRLC	471	1,552
Financial Liabilities-Recurring Forward sales commitment	651	3,105
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	1,750	250
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	40,999	8,142
Mortgage-backed securities	40,495	24,006
Municipals	2,209
Subordinated debt	10,996	8,696
Loans held for sale	5,141	34,421
IRLC	471	1,552
Financial Liabilities-Recurring Forward sales commitment	$ 651	3,105
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned		336
Fair Value, Measurements, Nonrecurring [Member] | Reported Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned		$ 336