Note 5 - Employee Retirement Benefit Plans: Schedule of Costs of Retirement Plans, changes in benefit obligation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Actuarial loss		$ (15,710)
Pension Plan
Projected benefit obligation as of beginning of the year	$ 64,831	48,091
Fair value of plan assets - beginning of year	29,721	29,073
Actual return on plan assets	1,547	1,125
Contributions	0	0
Transfer out upon termination	(30,929)	0
Fair value of plan assets - end of year	0	29,721
Service cost	0	0
Interest cost	617	2,275
Actuarial loss	1,690	14,942
Benefits paid	(339)	(477)
Transfer of benefit obligation upon termination	(66,799)	0
Projected benefit obligation as of beginning of the year	0	64,831
Supplemental Executive Retirement Plan
Projected benefit obligation as of beginning of the year	4,871	4,846
Fair value of plan assets - beginning of year	0	0
Actual return on plan assets	0	0
Contributions	497	501
Transfer out upon termination	0	0
Fair value of plan assets - end of year	0	0
Service cost	0	0
Interest cost	177	218
Actuarial loss	769	308
Benefits paid	(497)	(501)
Transfer of benefit obligation upon termination	0	0
Projected benefit obligation as of beginning of the year	$ 5,320	$ 4,871