Note 5 - Employee Retirement Benefit Plans: Schedule of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Pension Plan
Service cost	$ 0	$ 0
Interest cost	617	2,275
Expected return on assets	(585)	(2,298)
Amortization of actuarial loss	195	406
Amortization of prior year service cost	0	0
Net periodic benefit cost	227	383
Insurance premium due PBGC	99	545
Supplemental Executive Retirement Plan
Service cost	0	0
Interest cost	177	218
Expected return on assets	0	0
Amortization of actuarial loss	68	50
Amortization of prior year service cost	(49)	(49)
Net periodic benefit cost	196	219
Insurance premium due PBGC	$ 0	$ 0