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Troubled Debt Restructurings (Narrative) (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020 USD ($) contract	Mar. 31, 2019 contract	Dec. 31, 2019 USD ($) contract	Apr. 30, 2020 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of troubled debt restructured loans | contract	17		18
Loan is considered payment default	30 days
Financing Receivable, Modifications, Nonaccrual, Number of Contracts | contract	3		4
Financing Receivable, Modifications, Nonaccrual, Recorded Investment | $	$ 155		$ 401
Number of additional troubled debt restructuring loans | contract	0	0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts | contract		1
Total troubled debt restructured loans | $	$ 2,700		$ 3,000
CARES Act [Member] | Payment Deferral [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Deferrals on outstanding loan balances | $	$ 52,900
CARES Act [Member] | Payment Deferral [Member] | Subsequent Event [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Deferrals on outstanding loan balances | $				$ 44,100

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