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Securities (Securities With Unrealized Losses) (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Schedule of Available-for-sale Securities [Line Items]    
Less than 12 Months, Fair Value $ 499 $ 499
Less than 12 Months, Unrealized Loss   1
12 Months or More, Fair Value 2,501 8,401
12 Months or More, Unrealized Loss 1 98
Total, Fair Value 3,000 8,900
Total, Unrealized Loss 1 99
U.S. Treasury [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Less than 12 Months, Fair Value 499 [1] 499
Less than 12 Months, Unrealized Loss   1
12 Months or More, Fair Value 2,501 [1] 8,401
12 Months or More, Unrealized Loss 1 [1] 98
Total, Fair Value 3,000 [1] 8,900
Total, Unrealized Loss $ 1 [1] $ 99
[1] Unrealized loss is less than $1 resulting in rounding to zero