Quarterly report pursuant to Section 13 or 15(d)

PENSION PLANS. (Details)

v3.20.1
PENSION PLANS. (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Postretirement Plan [Member]      
Pension Plans (Textual)      
Accumulated projected benefit obligation     $ 5,300
Net periodic expense $ 59,000 $ 102,000  
Interest cost 38,000 55,000  
Service cost 14,000 17,000  
Amortization expense 7,000 30,000  
Retirement Plan [Member]      
Pension Plans (Textual)      
Accumulated projected benefit obligation     21,600
Fair value of plan assets     15,700
Underfunded amount     $ 5,900
Net periodic expense 48,000 94,000  
Interest cost 173,000 190,000  
Service cost 101,000 94,000  
Expected return on plan assets $ 226,000 $ 190,000