Note 6 - Employee Retirement Benefit Plans: Schedule of Amounts Recognized in Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Pension Plan
Accrued liability	$ 0	$ 0
Accumulated other comprehensive loss	0	0
Net amount recognized	0	0
Supplemental Executive Retirement Plan
Accrued liability	(4,851)	(5,320)
Accumulated other comprehensive loss	2,146	2,404
Net amount recognized	$ (2,705)	$ (2,916)