Securities, Available-for-sale Securities (Details) $ in Thousands	Dec. 31, 2019 USD ($) security	Dec. 31, 2018 USD ($) security
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Number of Positions [Abstract]
Less than 12 months Securities | security	7	1
12 months or more securities | security		9
Total Securities | security	7	10
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 Months, Fair Value	$ 7,887	$ 990
12 Months or More, Fair Value		10,988
Total, Estimated Fair Value	7,887	11,978
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Unrealized Losses	64	5
12 Months or More, Unrealized Losses		95
Total, Unrealized Losses	$ 64	$ 100
U.S. Treasury Securities [Member]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Number of Positions [Abstract]
Less than 12 months Securities | security		1
12 months or more securities | security		1
Total Securities | security		2
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 Months, Fair Value		$ 990
12 Months or More, Fair Value		991
Total, Estimated Fair Value		1,981
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Unrealized Losses		5
12 Months or More, Unrealized Losses		6
Total, Unrealized Losses		$ 11
U.S. Government Agency Notes [Member]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Number of Positions [Abstract]
12 months or more securities | security		8
Total Securities | security		8
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
12 Months or More, Fair Value		$ 9,997
Total, Estimated Fair Value		9,997
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
12 Months or More, Unrealized Losses		89
Total, Unrealized Losses		$ 89
Mortgage-backed Securities [Member]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Number of Positions [Abstract]
Less than 12 months Securities | security	7
Total Securities | security	7
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Less than 12 Months, Fair Value	$ 7,887
Total, Estimated Fair Value	7,887
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Unrealized Losses	64
Total, Unrealized Losses	$ 64