Loans, Troubled Debt Restructurings Segregated by Class (Details)	12 Months Ended
	Dec. 31, 2020 USD ($) Loan	Dec. 31, 2019 USD ($) Loan
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan	47	35
Pre-Modification Outstanding Recorded Investment	$ 17,879,000
Post-Modification Outstanding Balance	17,850,000	$ 9,076,000
Commitment to extend additional credit on loans modified in TDRs	$ 85,000	$ 82,000
Defaulted restructured loans, number of loans | Loan	3	3
Defaulted restructured loans, recorded balance	$ 368,000	$ 527,000
Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Pre-Modification Outstanding Recorded Investment	15,235,000
Post-Modification Outstanding Balance	15,208,000	8,133,000
Rate Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance		0
Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Pre-Modification Outstanding Recorded Investment	2,644,000
Post-Modification Outstanding Balance	$ 2,642,000	$ 943,000
Commercial [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan	43
Pre-Modification Outstanding Recorded Investment	$ 16,383,000
Post-Modification Outstanding Balance	16,371,000
Commercial [Member] | Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Pre-Modification Outstanding Recorded Investment	13,739,000
Post-Modification Outstanding Balance	13,729,000
Commercial [Member] | Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Pre-Modification Outstanding Recorded Investment	2,644,000
Post-Modification Outstanding Balance	$ 2,642,000
Commercial [Member] | Construction [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Defaulted restructured loans, number of loans | Loan		0
Defaulted restructured loans, recorded balance		$ 0
Commercial [Member] | Commercial Real Estate Residential [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan	12
Pre-Modification Outstanding Recorded Investment	$ 6,503,000
Post-Modification Outstanding Balance	6,505,000
Commercial [Member] | Commercial Real Estate Residential [Member] | Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Pre-Modification Outstanding Recorded Investment	4,694,000
Post-Modification Outstanding Balance	4,696,000
Commercial [Member] | Commercial Real Estate Residential [Member] | Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Pre-Modification Outstanding Recorded Investment	1,809,000
Post-Modification Outstanding Balance	$ 1,809,000
Commercial [Member] | Commercial Real Estate Nonresidential [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan	18
Pre-Modification Outstanding Recorded Investment	$ 8,077,000
Post-Modification Outstanding Balance	8,131,000
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Pre-Modification Outstanding Recorded Investment	7,295,000
Post-Modification Outstanding Balance	7,349,000
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Pre-Modification Outstanding Recorded Investment	782,000
Post-Modification Outstanding Balance	$ 782,000
Commercial [Member] | Hotel/Motel [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan	1
Pre-Modification Outstanding Recorded Investment	$ 1,113,000
Post-Modification Outstanding Balance	1,113,000
Commercial [Member] | Hotel/Motel [Member] | Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Pre-Modification Outstanding Recorded Investment	1,113,000
Post-Modification Outstanding Balance	1,113,000
Commercial [Member] | Hotel/Motel [Member] | Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Pre-Modification Outstanding Recorded Investment	0
Post-Modification Outstanding Balance	$ 0
Commercial [Member] | Commercial Other [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan	12	17
Pre-Modification Outstanding Recorded Investment	$ 690,000
Post-Modification Outstanding Balance	$ 622,000	$ 1,829,000
Defaulted restructured loans, number of loans | Loan	3	1
Defaulted restructured loans, recorded balance	$ 368,000	$ 34,000
Commercial [Member] | Commercial Other [Member] | Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Pre-Modification Outstanding Recorded Investment	637,000
Post-Modification Outstanding Balance	571,000	1,565,000
Commercial [Member] | Commercial Other [Member] | Rate Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance		0
Commercial [Member] | Commercial Other [Member] | Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Pre-Modification Outstanding Recorded Investment	53,000
Post-Modification Outstanding Balance	$ 51,000	$ 264,000
Commercial [Member] | Real Estate Mortgage [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan		17
Post-Modification Outstanding Balance		$ 6,784,000
Defaulted restructured loans, number of loans | Loan		1
Defaulted restructured loans, recorded balance		$ 30,000
Commercial [Member] | Real Estate Mortgage [Member] | Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance		6,105,000
Commercial [Member] | Real Estate Mortgage [Member] | Rate Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance		0
Commercial [Member] | Real Estate Mortgage [Member] | Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance		$ 679,000
Residential [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan	4
Pre-Modification Outstanding Recorded Investment	$ 1,496,000
Post-Modification Outstanding Balance	1,479,000
Residential [Member] | Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Pre-Modification Outstanding Recorded Investment	1,496,000
Post-Modification Outstanding Balance	1,479,000
Residential [Member] | Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Pre-Modification Outstanding Recorded Investment	0
Post-Modification Outstanding Balance	$ 0
Residential [Member] | Real Estate Mortgage [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan	4	1
Pre-Modification Outstanding Recorded Investment	$ 1,496,000
Post-Modification Outstanding Balance	1,479,000	$ 463,000
Defaulted restructured loans, number of loans | Loan		1
Defaulted restructured loans, recorded balance		$ 463,000
Residential [Member] | Real Estate Mortgage [Member] | Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Pre-Modification Outstanding Recorded Investment	1,496,000
Post-Modification Outstanding Balance	1,479,000	463,000
Residential [Member] | Real Estate Mortgage [Member] | Rate Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance		0
Residential [Member] | Real Estate Mortgage [Member] | Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Pre-Modification Outstanding Recorded Investment	0
Post-Modification Outstanding Balance	$ 0	$ 0