Note 5 - Employee Retirement Benefit Plans: Schedule of Amounts Recognized in Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Pension Plan
Unfunded status	$ 0	$ (35,111)
Accrued PBGC insurance premiums	0	(629)
Unrecognized net actuarial loss	0	31,971
Unrecognized prior service cost	0	0
Net amount recognized	0	(3,769)
Supplemental Executive Retirement Plan
Unfunded status	(5,320)	(4,871)
Accrued PBGC insurance premiums	0	0
Unrecognized net actuarial loss	2,415	1,713
Unrecognized prior service cost	(11)	(59)
Net amount recognized	$ (2,916)	$ (3,217)