XML 51 R40.htm IDEA: XBRL DOCUMENT v3.20.4
Compensation Related Costs, Retirement Benefits (Details) - USD ($)
3 Months Ended 6 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Jun. 30, 2019
Retirement Benefits [Abstract]      
Other Income   $ 758,000  
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate     4.50%
Liability, Retirement and Postemployment Benefits     $ 792,000
Payment for Pension and Other Postretirement Benefits $ 8,491