Loans (Troubled Debt Restructurings on Financing Receivables) (Details) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020 USD ($) numberOfTDRLoans	Dec. 31, 2019 USD ($) numberOfTDRLoans
Financing Receivable, Impaired [Line Items]
Financing receivable post modification recorded investment | $	$ 2,189	$ 2,049
Less: TDRs included in non-accrual loans | $	(1,596)	(1,399)
Accrual TDR loans | $	$ 593	$ 650
Number of TDR loans | numberOfTDRLoans	8	8
Number of non-accrual TDR loans | numberOfTDRLoans	(4)	(3)
Number of accrual TDR loans | numberOfTDRLoans	4	5
Commercial real estate
Financing Receivable, Impaired [Line Items]
Financing receivable post modification recorded investment | $	$ 1,408	$ 1,420
Number of TDR loans | numberOfTDRLoans	3	3
Residential first mortgages
Financing Receivable, Impaired [Line Items]
Financing receivable post modification recorded investment | $	$ 257	$ 64
Number of TDR loans | numberOfTDRLoans	2	1
Commercial equipment
Financing Receivable, Impaired [Line Items]
Financing receivable post modification recorded investment | $	$ 524	$ 565
Number of TDR loans | numberOfTDRLoans	3	4