XML 55 R65.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
EMPLOYEE BENEFIT PLANS - Components of net periodic benefit cost (Details) - Retirement Income Plan - USD ($)
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
EMPLOYEE BENEFIT PLANS      
Service cost for benefits earned during the period $ 0 $ 0 $ 0
Interest cost on projected benefit obligation 255,000 251,000 266,000
Expected return on plan assets (468,000) (501,000) (415,000)
Amortization of net losses 87,000 81,000 91,000
Net periodic benefit cost (126,000) (169,000) $ (58,000)
Employer contributions $ 0 $ 770,000