Employee Benefit Plans - Schedule of Supplemental Executive Retirement Plan (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Amounts Recognized in the Balance Sheets [Abstract]
Other assets, deferred income tax benefit	$ 479	$ 509
Supplemental Executive Retirement Plan [Member]
Changes in Benefit Obligations [Roll Forward]
Benefit obligation, beginning	2,574	2,485	$ 2,531
Service cost	169	171	164
Interest cost	100	84	92
Actuarial gain	(20)	(18)	(141)
Benefits paid	(148)	(148)	(161)
Benefit obligation, ending	2,675	2,574	2,485
Funded status, ending	(2,675)	(2,574)	(2,485)
Changes in Plan Assets [Roll Forward]
Employer contributions	148	148	161
Benefits paid	(148)	(148)	(161)
Amounts Recognized in the Balance Sheets [Abstract]
Other assets, deferred income tax benefit	479	513	542
Other liabilities	2,675	2,574	2,485
Accumulated other comprehensive income	157	140	125
Amounts Recognized in Accumulated Other Comprehensive Income (Loss) [Abstract]
Net gain	176	155	137
Prior service cost	22	22	21
Deferred tax expense	(41)	(37)	(33)
Amount recognized	157	140	125
Components of Net Periodic Benefit Cost [Abstract]
Service cost	169	171	164
Interest cost	100	84	92
Amortization of prior service cost	1	1	1
Net periodic benefit cost	270	256	257
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income [Abstract]
Net gain	20	18	140
Amortization of prior service cost	1	1	1
Total recognized	21	19	141
Less: Income tax effect	4	4	27
Net amount recognized in other comprehensive income	17	15	114
Total recognized in net periodic benefit costs and other comprehensive income before income tax	$ 249	$ 237	$ 116
Weighted-Average Assumptions for Net Periodic Benefit Cost [Abstract]
Discount rate used for net periodic benefit cost	4.00%	3.50%	3.75%
Rate of compensation increase for net periodic benefit cost and benefit obligation	3.25%	3.25%	3.25%
Weighted-Average Assumptions [Abstract]
Discount rate used for benefit obligation	3.00%	4.00%	3.50%