Securities - Scheduled Maturities of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Amortized Cost
Due in one year or less	$ 31,194
Due after one year through five years	74,630
Due after five years through 10 years	90,828
Over 10 years	13,931
Subtotal	210,583
Total available for sale securities	430,255	$ 337,184
Fair Value
Due in one year or less	31,186
Due after one year through five years	74,266
Due after five years through 10 years	88,232
Over 10 years	14,708
Subtotal	208,392
Fair value	433,926	339,937
Amortized Cost
Due in one year or less	0
Due after one year through five years	0
Due after five years through 10 years	0
Over 10 years	0
Subtotal	0
Mortgage-backed securities	0
Amortized Cost	0	86,579
Fair Value
Due in one year or less	0
Due after one year through five years	0
Due after five years through 10 years	0
Over 10 years	0
Subtotal	0
Mortgage-backed securities	0
Fair value	0	86,817
Collateralized mortgage obligations
Amortized Cost
Without single maturity date	13,752
Total available for sale securities	13,752	16,400
Fair Value
Without single maturity date	13,773
Fair value	13,773	16,397
Mortgage-backed securities
Amortized Cost
Without single maturity date	205,920
Total available for sale securities	205,920	179,546
Fair Value
Without single maturity date	211,761
Fair value	211,761	179,625
Amortized Cost
Amortized Cost	0	63,297
Fair Value
Fair value	$ 0	$ 63,385