Employee Benefit Plan (Components of Net Periodic Benefit Cost for Plan) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Components of net periodic cost (income)
Interest cost	$ 162	$ 158
Expected return on plan assets	(214)	(238)
Amortization of prior service cost	5	5
Recognized net loss due to settlement	140
Recognized net actuarial loss	47	60
Net periodic benefit cost	$ 140	$ (15)