Employee Benefit Plans - Schedule of financial information for this Plan (Details) - Other Postretirement Benefit Plans, Defined Benefit - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Pension cost	$ 168,000	$ 144,000
Company contribution and benefits paid	$ 62,000	$ 95,000