Investment Securities - Schedule of Amortized Cost and Fair Value by Contractual Maturity of Available-For-Sale Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Amortized Cost
Amortized Cost	$ 213,542	$ 274,788
Fair Value
Total	215,369	276,138
U.S. Treasury and government sponsored entities
Amortized Cost
Within 1 year	69,006
1-5 years	86,965
Amortized Cost	155,971	210,756
Fair Value
Within 1 year	69,784
1-5 years	87,768
Total	$ 157,552	211,852
Weighted Average Yield
Within 1 year (percent)	2.22%
1-5 years (percent)	1.15%
Total (percent)	1.63%
Corporate bonds
Amortized Cost
1-5 years	$ 26,750
Amortized Cost	26,750	34,764
Fair Value
1-5 years	27,215
Total	$ 27,215	35,066
Weighted Average Yield
1-5 years (percent)	1.45%
Total (percent)	1.45%
Collateralized loan obligations
Amortized Cost
5-10 years	$ 5,090
Over 10 years	23,436
Amortized Cost	28,526	25,980
Fair Value
5-10 years	5,053
Over 10 years	23,213
Total	$ 28,266	25,923
Weighted Average Yield
5-10 years (percent)	1.89%
Over 10 years (percent)	1.70%
Total (percent)	1.73%
Municipal securities
Amortized Cost
1-5 years	$ 2,295
Amortized Cost	2,295	3,288
Fair Value
1-5 years	2,336
Total	$ 2,336	$ 3,297
Weighted Average Yield
1-5 years (percent)	3.92%
Total (percent)	3.92%