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Financial Derivative Instruments (Details)	12 Months Ended
	Dec. 31, 2020 USD ($) instrument derivative	Dec. 31, 2019 USD ($) instrument
Interest Rate Swap
Derivative [Line Items]
Expense incurred from restructuring derivatives	$ 1,756,000
Not Designated as Hedging Instrument [Member] | Customer Loan Interest Swap
Derivative [Line Items]
Collateral posted, securities	$ 10,000,000
Cash Flow Hedging | Designated as Hedging Instrument | June 27, 2016
Derivative [Line Items]
Fixed Rate Paid	0.893%
Notional Amount	$ 20,000,000	$ 20,000,000
Fair Value	$ (76,000)	199,000
Cash Flow Hedging | Designated as Hedging Instrument | June 28, 2016
Derivative [Line Items]
Fixed Rate Paid	0.94%
Notional Amount	$ 30,000,000	30,000,000
Fair Value	$ (121,000)	278,000
Cash Flow Hedging | Designated as Hedging Instrument | June 5, 2018, Maturity Date June 5, 2020
Derivative [Line Items]
Fixed Rate Paid	2.547%
Notional Amount	$ 0	25,000,000
Fair Value	$ 0	(96,000)
Cash Flow Hedging | Designated as Hedging Instrument | June 5, 2018, Maturity Date December 5, 2020
Derivative [Line Items]
Fixed Rate Paid	2.603%
Notional Amount	$ 0	25,000,000
Fair Value	$ 0	(234,000)
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap December 5, 2019, Maturity Date December 5, 2022
Derivative [Line Items]
Fixed Rate Paid	1.779%
Notional Amount	$ 0	25,000,000
Fair Value	$ 0	(98,000)
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap August 2, 2019, Maturity Date August 2, 2024
Derivative [Line Items]
Fixed Rate Paid	1.59%
Notional Amount	$ 12,500,000	12,500,000
Fair Value	$ (626,000)	(11,000)
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap August 5, 2019, Maturity Date August 5, 2024
Derivative [Line Items]
Fixed Rate Paid	1.42%
Notional Amount	$ 12,500,000	12,500,000
Fair Value	(550,000)	85,000
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap
Derivative [Line Items]
Notional Amount	260,000,000	150,000,000
Fair Value	$ (6,242,000)	123,000
Number of Positions | derivative	11
Cash Flow Hedging | Designated as Hedging Instrument | Customer Loan Swaps
Derivative [Line Items]
Fair Value	$ 0	$ 0
Number of Positions | instrument	10	4
Derivative notional amount	$ 65,974,000	$ 32,748,000
Collateral posted, cash	3,100,000
Required collateral to be pledged	9,011,000
Cash Flow Hedging | Designated as Hedging Instrument | Customer Loan Swaps | Other Liabilities
Derivative [Line Items]
Fair Value	$ (2,640,000)	$ (1,205,000)
Number of Positions | instrument	5	2
Derivative notional amount	$ 32,987,000	$ 16,374,000
Cash Flow Hedging | Designated as Hedging Instrument | Customer Loan Swaps | Other Assets
Derivative [Line Items]
Fair Value	$ 2,640,000	$ 1,205,000
Number of Positions | instrument	5	2
Derivative notional amount	$ 32,987,000	$ 16,374,000
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap Maturity Date Prior to December 31, 2021
Derivative [Line Items]
Notional Amount	$ 50,000,000
Number of Positions | instrument	2
Cash Flow Hedging | Designated as Hedging Instrument | Customer Loan Swaps Maturity Dates December 19, 2029 and October 1, 2039
Derivative [Line Items]
Number of Positions | derivative	5
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap February 12, 2023
Derivative [Line Items]
Fixed Rate Paid	1.486%
Notional Amount	$ 25,000,000	0
Fair Value	$ (695,000)	0
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap February 12, 2024
Derivative [Line Items]
Fixed Rate Paid	1.477%
Notional Amount	$ 25,000,000	0
Fair Value	$ (972,000)	0
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap June 28, 2026
Derivative [Line Items]
Fixed Rate Paid	1.158%
Notional Amount	$ 50,000,000	0
Fair Value	$ (1,872,000)	0
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap March 13, 2025
Derivative [Line Items]
Fixed Rate Paid	0.855%
Notional Amount	$ 25,000,000	0
Fair Value	$ (551,000)	0
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap March 13, 2030
Derivative [Line Items]
Fixed Rate Paid	1.029%
Notional Amount	$ 20,000,000	0
Fair Value	$ (339,000)	0
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap April 07, 2023
Derivative [Line Items]
Fixed Rate Paid	0.599%
Notional Amount	$ 20,000,000	0
Fair Value	$ (185,000)	0
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap April 07, 2024
Derivative [Line Items]
Fixed Rate Paid	0.643%
Notional Amount	$ 20,000,000	0
Fair Value	(255,000)	$ 0
Cash Flow Hedging | Designated as Hedging Instrument | Customer Loan Interest Swap
Derivative [Line Items]
Notional Amount	$ 65,974,000
Number of Positions | derivative	5
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap Maturity Date Prior to June 30, 2023
Derivative [Line Items]
Notional Amount	$ 45,000,000
Number of Positions | instrument	2
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap Maturity Date Beyond June 30, 2023
Derivative [Line Items]
Notional Amount	$ 165,000,000
Number of Positions | instrument	7

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