Securities Held-to-Maturity - Age of unrealized losses and the fair value (Details) $ in Thousands	Dec. 31, 2022 USD ($) item security	Dec. 31, 2021 USD ($) item
Fair Value
Less than 12 Months	$ 13,115	$ 13,080
12 Months or More	9,742
Total	22,857	13,080
Gross Unrealized Losses
Less than 12 Months	537	327
12 Months or More	2,993
Total	3,530	327
Government National Mortgage Association
Fair Value
Less than 12 Months	505
Total	505
Gross Unrealized Losses
Less than 12 Months	18
Total	18
Federal Home Loan Mortgage Corporation
Fair Value
Less than 12 Months		1,004
12 Months or More	824
Total	824	1,004
Gross Unrealized Losses
Less than 12 Months		5
12 Months or More	129
Total	129	5
Federal National Mortgage Association
Fair Value
Less than 12 Months	478	2,035
12 Months or More	1,580
Total	2,058	2,035
Gross Unrealized Losses
Less than 12 Months	33	6
12 Months or More	217
Total	250	6
Collateralized mortgage obligations - GSE
Fair Value
Less than 12 Months	1,777	907
12 Months or More	759
Total	2,536	907
Gross Unrealized Losses
Less than 12 Months	344	49
12 Months or More	162
Total	506	49
Mortgage-backed securities - residential
Fair Value
Less than 12 Months	2,760	3,946
12 Months or More	3,163
Total	5,923	3,946
Gross Unrealized Losses
Less than 12 Months	395	60
12 Months or More	508
Total	$ 903	60
Mortgage-backed securities
Gross Unrealized Losses
Number of securities with unrealized loss | security	35
Municipal Bonds
Fair Value
Less than 12 Months	$ 444	9,134
12 Months or More	6,579
Total	7,023	9,134
Gross Unrealized Losses
Less than 12 Months	39	267
12 Months or More	2,485
Total	$ 2,524	$ 267
Number of securities with unrealized loss | item	6	3
U.S Treasury securities
Fair Value
Less than 12 Months	$ 9,911
Total	9,911
Gross Unrealized Losses
Less than 12 Months	103
Total	$ 103
US Treasury Notes
Gross Unrealized Losses
Number of securities with unrealized loss | item	2