Pension Plan (Details) - USD ($)	1 Months Ended	3 Months Ended
	Aug. 13, 2019	Jun. 30, 2019	Dec. 31, 2018
Pension Plan (Details) [Line Items]
Liability, Defined Benefit Pension Plan, Current		$ 475,000	$ 623,000
Liability, Defined Benefit Pension Plan, Noncurrent		3,500,000	$ 3,700,000
Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year		629,000
Defined Benefit Plan, Plan Assets, Contributions by Employer		$ 391,000
Subsequent Event [Member]
Pension Plan (Details) [Line Items]
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 85,000