Quarterly report pursuant to Section 13 or 15(d)

7. Pension Plans (Details Narrative)

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7. Pension Plans (Details Narrative) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Pension Plan [Member]      
Accumulated projected benefit obligation     $ 18,500
Fair value of plan assets     12,400
Underfunded amount     6,100
Net periodic expense $ 117 $ 29  
Interest cost 188 172  
Service cost 98 56  
Partially offset expected return on plan assets 169 199  
Postretirement Plan [Member]      
Accumulated projected benefit obligation     $ 5,400
Net periodic expense 104 47  
Interest cost 50 35  
Service cost $ 33 $ 12