Deposits - Total deposits and the weighted average rate of deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Amount
Non-interest bearing	$ 330,853	$ 221,371
NOW and money market	118,420	100,945
Total	449,273	322,316
Savings accounts	184,896	101,693
Certificates of deposit maturing in:
One year or less	189,247	211,834
After one to two years	35,677	71,381
After two to three years	16,950	8,962
After three to four years	38,373	10,516
After four years	12,748	45,004
Total	292,995	347,697
Total deposits	$ 927,164	$ 771,706
Weighted Average Interest Rate
NOW and money market	0.53%	0.50%
Total	0.14%	0.16%
Savings accounts	0.63%	0.33%
Certificates of deposit maturing in:
One year or less	0.89%	1.38%
After one to two years	1.23%	1.39%
After two to three years	1.82%	1.95%
After three to four years	0.63%	2.43%
Atter four years	1.31%	0.81%
Total	0.97%	1.35%
Weighted average rate of deposits	0.50%	0.72%