Pension Plan (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2020
Pension Plan (Details) [Line Items]
Defined Benefit Plan Vesting Periods	5 years
Defined Benefit Plan, Funded (Unfunded) Status of Plan	$ (4,110,000)	$ (4,318,000)
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets	8.00%	8.00%
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year	$ 281,000
Defined Benefit Plan, Accumulated Benefit Obligation	14,300,000	$ 13,000,000
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year	641,000
Liability, Defined Benefit Pension Plan, Noncurrent	3,500,000
Defined Benefit Plan, Plan Assets, Contributions by Employer	629,000	$ 421,000
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year	556,000
Liability, Other Retirement Benefits	$ 500,000
Subsequent Event [Member]
Pension Plan (Details) [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year			$ 85,000