Securities Held-to-Maturity - Age of unrealized losses and the fair value (Details) $ in Thousands	Jun. 30, 2022 USD ($) item security	Dec. 31, 2021 USD ($) item security
Fair Value
Less than 12 Months	$ 24,113	$ 13,080
Total	24,113	13,080
Gross Unrealized Losses
Less than 12 Months	2,804	327
Total	2,804	327
Government National Mortgage Association
Fair Value
Less than 12 Months	343
Total	343
Gross Unrealized Losses
Less than 12 Months	7
Total	7
Federal Home Loan Mortgage Corporation
Fair Value
Less than 12 Months	882	1,004
Total	882	1,004
Gross Unrealized Losses
Less than 12 Months	92	5
Total	92	5
Federal National Mortgage Association
Fair Value
Less than 12 Months	2,326	2,035
Total	2,326	2,035
Gross Unrealized Losses
Less than 12 Months	161	6
Total	161	6
Collateralized mortgage obligations - GSE
Fair Value
Less than 12 Months	2,866	907
Total	2,866	907
Gross Unrealized Losses
Less than 12 Months	328	49
Total	328	49
Mortgage-backed securities - residential
Fair Value
Less than 12 Months	6,417	3,946
Total	6,417	3,946
Gross Unrealized Losses
Less than 12 Months	588	60
Total	$ 588	$ 60
Mortgage-backed securities
Gross Unrealized Losses
Number of securities with unrealized loss | security	12	4
Municipal Bonds
Fair Value
Less than 12 Months	$ 7,752	$ 9,134
Total	7,752	9,134
Gross Unrealized Losses
Less than 12 Months	2,130	267
Total	$ 2,130	$ 267
Number of securities with unrealized loss | item	5	3
U.S Treasury securities
Fair Value
Less than 12 Months	$ 9,944
Total	9,944
Gross Unrealized Losses
Less than 12 Months	86
Total	$ 86
US Treasury Notes
Gross Unrealized Losses
Number of securities with unrealized loss | item	2