Debt Securities - Additional Information (Details) $ in Thousands	Mar. 31, 2020 USD ($) security	Dec. 31, 2019 USD ($) security
Debt Securities [Abstract]
Pledged securities	$ 334,700	$ 264,800
Schedule of Available-for-sale Securities
Securities in continuous unrealized loss position | security	122	94
Accumulated unrealized losses	$ 5,869	$ 2,443
Interest receivable	$ 17,029	$ 18,525
State and political subdivisions
Schedule of Available-for-sale Securities
Securities in continuous unrealized loss position | security	77	47
Accumulated unrealized losses	$ 1,209	$ 348
Mortgage-backed securities
Schedule of Available-for-sale Securities
Securities in continuous unrealized loss position | security	9	7
Accumulated unrealized losses	$ 2	$ 15
Collateralized mortgage obligations
Schedule of Available-for-sale Securities
Securities in continuous unrealized loss position | security	8	33
Accumulated unrealized losses	$ 1,231	$ 1,965
Corporate debt securities
Schedule of Available-for-sale Securities
Securities in continuous unrealized loss position | security	28	7
Accumulated unrealized losses	$ 3,427	$ 115
Debt securities
Schedule of Available-for-sale Securities
Interest receivable	$ 4,600