Note 6 - Employee Retirement Benefit Plans: Schedule of Amounts Recognized in Other Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Pension Plans, Defined Benefit
Unfunded status	$ (35,111)	$ (19,018)
Accrued PBGC insurance premiums	(629)	(234)
Unrecognized net actuarial loss	31,971	16,261
Unrecognized prior service cost	0	0
Net amount recognized	(3,769)	(2,991)
Supplemental Executive Retirement Plan
Unfunded status	(4,871)	(4,846)
Accrued PBGC insurance premiums	0	0
Unrecognized net actuarial loss	1,713	1,455
Unrecognized prior service cost	(59)	(107)
Net amount recognized	$ (3,217)	$ (3,498)