Debt Securities - Additional Information (Details) $ in Thousands	Jun. 30, 2020 USD ($) security	Dec. 31, 2019 USD ($) security
Schedule of Available-for-sale Securities
Pledged securities	$ 377,800	$ 264,800
Securities in continuous unrealized loss position | security	91	94
Accumulated unrealized losses	$ 2,543	$ 2,443
Interest receivable	$ 21,082	$ 18,525
State and political subdivisions
Schedule of Available-for-sale Securities
Securities in continuous unrealized loss position | security	63	47
Accumulated unrealized losses	$ 1,206	$ 348
Mortgage-backed securities
Schedule of Available-for-sale Securities
Securities in continuous unrealized loss position | security	5	7
Accumulated unrealized losses	$ 1	$ 15
Collateralized mortgage obligations
Schedule of Available-for-sale Securities
Securities in continuous unrealized loss position | security	3	33
Accumulated unrealized losses	$ 438	$ 1,965
Corporate debt securities
Schedule of Available-for-sale Securities
Securities in continuous unrealized loss position | security	20	7
Accumulated unrealized losses	$ 898	$ 115
Debt securities
Schedule of Available-for-sale Securities
Interest receivable	$ 5,600