Annual report pursuant to Section 13 and 15(d)

Note 5 - Employee Benefit Plans - Summary of Net Periodic Benefits Cost (Details)

v3.8.0.1
Note 5 - Employee Benefit Plans - Summary of Net Periodic Benefits Cost (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Change in projected benefits obligation:      
Service cost $ 147 $ 153 $ 160
Interest cost 201 215 200
Expected return on plan assets (339) (311) (296)
Amortization of net loss 108 140 144
Amortization of prior service cost 3
Net periodic benefit cost $ 117 $ 197 $ 211