Investment Securities - Schedule of Amortized Cost and Fair Value by Contractual Maturity of Available-For-Sale Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Amortized Cost
Amortized Cost	$ 255,971	$ 273,126
Fair Value
Total	257,270	271,610
U.S. Treasury and government sponsored entities
Amortized Cost
Within 1 year	58,533
1-5 years	128,867
Amortized Cost	187,400	209,908
Fair Value
Within 1 year	58,570
1-5 years	129,930
Total	$ 188,500	208,860
Weighted Average Yield
Within 1 year	2.01%
1-5 years	2.28%
Total	2.20%
Corporate bonds
Amortized Cost
Within 1 year	$ 19,456
1-5 years	17,767
5-10 years	4,996
Amortized Cost	42,219	40,139
Fair Value
Within 1 year	19,503
1-5 years	17,927
5-10 years	5,030
Total	$ 42,460	39,780
Weighted Average Yield
Within 1 year	3.11%
1-5 years	3.21%
5-10 years	3.21%
Total	3.16%
Collateralized loan obligations
Amortized Cost
5-10 years	$ 6,000
Over 10 years	16,980
Amortized Cost	22,980	13,990
Fair Value
5-10 years	5,992
Over 10 years	16,938
Total	$ 22,930	13,886
Weighted Average Yield
5-10 years	3.88%
Over 10 years	3.71%
Total	3.75%
Municipal securities
Amortized Cost
Within 1 year	$ 1,897
1-5 years	1,475
Amortized Cost	3,372	9,089
Fair Value
Within 1 year	1,900
1-5 years	1,480
Total	$ 3,380	$ 9,084
Weighted Average Yield
Within 1 year	2.51%
1-5 years	4.92%
Total	3.56%