Federal Home Loan Bank and Short-term Borrowings - Derivatives (Details)	12 Months Ended
	Dec. 31, 2021 USD ($) item contract	Dec. 31, 2020 USD ($)
Derivative [Line Items]
Number of interest rate swap designated as cash flow | item	3
Derivative, Notional Amount	$ 20,000,000
Term	5 years
Assets/ Liabilities	$ (442,000)	$ (949,000)
Unrealized Gain (Loss) AOCI	(321,000)	(689,000)
Interest expense recorded on these swap transactions	(404,000)	(241,000)
Fair value of cash or investment securities pledged as collateral	$ 1,175,000	949,000
Interest Rate Swap On FHLB Advance [Member] | Interest Rate Contract [Member]
Derivative [Line Items]
Number of derivative become effect in july and august 2018	2
Interest rate swap on FHLB advance maturing on October 2022
Derivative [Line Items]
Derivative, Notional Amount	$ 10,000,000
Pay Rate	2.105%
Receive Rate	3M LIBOR
Assets/ Liabilities	$ (174,000)	(387,000)
Unrealized Gain (Loss) AOCI	(126,000)	(281,000)
Interest expense recorded on these swap transactions	(194,000)	(113,000)
Interest rate swap on FHLB advance maturing on July 2023
Derivative [Line Items]
Derivative, Notional Amount	$ 5,000,000
Pay Rate	2.235%
Receive Rate	3M LIBOR
Assets/ Liabilities	$ (136,000)	(281,000)
Unrealized Gain (Loss) AOCI	(99,000)	(204,000)
Interest expense recorded on these swap transactions	(105,000)	(63,000)
Interest rate swap on FHLB advance maturing on August 2023
Derivative [Line Items]
Derivative, Notional Amount	$ 5,000,000
Pay Rate	2.246%
Receive Rate	3M LIBOR
Assets/ Liabilities	$ (132,000)	(281,000)
Unrealized Gain (Loss) AOCI	(96,000)	(204,000)
Interest expense recorded on these swap transactions	$ (105,000)	$ (65,000)