Employee Benefit Plans - Schedule of Net Periodic Benefit Cost Not Yet Recognized (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Retirement Benefits, Description [Abstract]
Unamortized net actuarial gain (loss)	$ 31	$ 47
Deferred tax (expense) benefit at 21%	(7)	(10)
Net unrecognized post-retirement benefits included in accumulated other comprehensive income (loss)	24	$ 37
Portion to Be Recognized in Income in 2020
Unamortized net actuarial gain (loss)	(158)
Deferred tax (expense) benefit at 21%	33
Net unrecognized post-retirement benefits included in accumulated other comprehensive income (loss)	$ (125)