Securities, Available-for-sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Number of Positions [Abstract]
Less than 12 months Securities	2	7
Total Securities	2	7
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 Months, Fair Value	$ 2,121	$ 7,887
Total, Estimated Fair Value	2,121	7,887
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Unrealized Losses	40	64
Total, Unrealized Losses	$ 40	$ 64
U.S. Government Agency Notes [Member]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Number of Positions [Abstract]
Less than 12 months Securities	2	7
Total Securities	2	7
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 Months, Fair Value	$ 2,121	$ 7,887
Total, Estimated Fair Value	2,121	7,887
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Unrealized Losses	40	64
Total, Unrealized Losses	$ 40	$ 64