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Loans, Troubled Debt Restructurings Segregated by Class (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019 USD ($) Loan	Jun. 30, 2018 USD ($) Loan	Jun. 30, 2019 USD ($) Loan	Jun. 30, 2018 USD ($) Loan	Dec. 31, 2018 USD ($) Loan
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan	10	13	23	29	40
Post-Modification Outstanding Balance	$ 4,104	$ 2,467	$ 7,299	$ 4,465	$ 9,017
Commitment to extend additional credit on loans modified in TDRs	$ 0		$ 0
Defaulted restructured loans, number of loans | Loan	0	2	0	2
Defaulted restructured loans, recorded balance	$ 0	$ 42	$ 0	$ 42
Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	3,824	2,467	6,237	3,467	6,915
Rate Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	0	0	0	0	0
Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	$ 280	$ 0	$ 1,062	$ 998	$ 2,102
Commercial [Member] | Construction [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan		2		4	5
Post-Modification Outstanding Balance		$ 411		$ 458	$ 2,197
Commercial [Member] | Construction [Member] | Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance		411		443	2,182
Commercial [Member] | Construction [Member] | Rate Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance		0		0	0
Commercial [Member] | Construction [Member] | Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance		$ 0		$ 15	$ 15
Commercial [Member] | Real Estate [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan	5	8	10	17	24
Post-Modification Outstanding Balance	$ 3,723	$ 1,773	$ 5,193	$ 3,542	$ 5,387
Defaulted restructured loans, number of loans | Loan	0	1	0	1
Defaulted restructured loans, recorded balance	$ 0	$ 17	$ 0	$ 17
Commercial [Member] | Real Estate [Member] | Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	3,686	1,773	4,514	2,559	4,004
Commercial [Member] | Real Estate [Member] | Rate Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	0	0	0	0	0
Commercial [Member] | Real Estate [Member] | Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	$ 37	$ 0	$ 679	$ 983	$ 1,383
Commercial [Member] | Other [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan	4	3	11	8	8
Post-Modification Outstanding Balance	$ 138	$ 283	$ 1,400	$ 465	$ 465
Defaulted restructured loans, number of loans | Loan	0	1	0	1
Defaulted restructured loans, recorded balance	$ 0	$ 25	$ 0	$ 25
Commercial [Member] | Other [Member] | Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	138	283	1,260	465	465
Commercial [Member] | Other [Member] | Rate Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	0	0	0	0	0
Commercial [Member] | Other [Member] | Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	$ 0	$ 0	$ 140	$ 0	$ 0
Residential [Member] | Construction [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan					0
Post-Modification Outstanding Balance					$ 0
Residential [Member] | Construction [Member] | Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance					0
Residential [Member] | Construction [Member] | Rate Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance					0
Residential [Member] | Construction [Member] | Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance					$ 0
Residential [Member] | Real Estate [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan	1		2		3
Post-Modification Outstanding Balance	$ 243		$ 706		$ 968
Residential [Member] | Real Estate [Member] | Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	0		463		264
Residential [Member] | Real Estate [Member] | Rate Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	0		0		0
Residential [Member] | Real Estate [Member] | Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	$ 243		$ 243		$ 704

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Number of financing receivables that have been modified by troubled debt restructurings.

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