Loans (Schedule of Loans Modified Under the Terms of a TDR) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($) item	Mar. 31, 2020 USD ($) item
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | item	6	5
Pre-Modification Recorded Balance	$ 63	$ 60
Post-Modification Recorded Balance	$ 63	$ 60
Student Loans Purchased [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | item	6	5
Pre-Modification Recorded Balance	$ 63	$ 60
Post-Modification Recorded Balance	$ 63	$ 60