XML 64 R102.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Note 13 - Employee and Postretirement Benefit Plans - Funded Status of Defined Benefit Plans (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Pension Plan [Member]    
Benefit obligation at beginning of year $ 870 $ 850
Service cost 0 0
Interest cost 28 25
Plan participants' contributions 0 0
Actuarial (gain) loss 91 11
Benefits paid (13) (16)
Benefit obligation at end of year 976 870
Fair value of plan assets at beginning of year 847 923
Actual return on plan assets 137 (60)
Employer contribution 0 0
Plan participants' contributions 0 0
Benefits paid (13) (16)
Fair value of plan assets at end of year 971 847
Funded status at end of year (5) (23)
Other Postretirement Benefits Plan [Member]    
Benefit obligation at beginning of year 1,349 1,497
Service cost 33 40
Interest cost 50 51
Plan participants' contributions 184 206
Actuarial (gain) loss (63) (192)
Benefits paid (227) (253)
Benefit obligation at end of year 1,326 1,349
Fair value of plan assets at beginning of year 0 0
Actual return on plan assets 0 0
Employer contribution 43 47
Plan participants' contributions 184 206
Benefits paid (227) (253)
Fair value of plan assets at end of year 0 0
Funded status at end of year $ (1,326) $ (1,349)