Securities (Securities With Unrealized Losses) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 3,077
Less than 12 Months, Unrealized Loss	10
12 Months or More, Fair Value
12 Months or More, Unrealized Loss
Total, Fair Value	3,077
Total, Unrealized Loss	10	$ 0
U.S. Treasury [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	3,077
Less than 12 Months, Unrealized Loss	10
12 Months or More, Fair Value
12 Months or More, Unrealized Loss
Total, Fair Value	3,077
Total, Unrealized Loss	$ 10