Note 6 - Employee Retirement Benefit Plans: Schedule of Fair Value of Pension Plan Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Inputs, Level 3
Fair value of plan assets at beginning of the year		$ 1,395
Beginning balance	1,395	1,630
Actual return on plan assets - gains	(412)	102
Purchases, sales, issuances and settlements (net)	(983)	(337)
Ending balance		1,395
Pension Plans, Defined Benefit
Fair value of plan assets at beginning of the year	29,073	24,760
Beginning balance	24,760	23,226
Actual return on plan assets - gains	4,785	2,655
Ending balance	29,073	24,760
Pension Plans, Defined Benefit | Equity Securities
Fair value of plan assets at beginning of the year	17,871	14,716
Ending balance	17,871	14,716
Pension Plans, Defined Benefit | Debt Securities
Fair value of plan assets at beginning of the year	10,924	6,092
Ending balance	10,924	6,092
Pension Plans, Defined Benefit | Hedge Funds
Fair value of plan assets at beginning of the year	243	2,273
Ending balance	243	2,273
Pension Plans, Defined Benefit | Money Market Funds
Fair value of plan assets at beginning of the year	35	284
Ending balance	35	284
Pension Plans, Defined Benefit | Real Estate
Fair value of plan assets at beginning of the year		1,395
Ending balance		1,395
Pension Plans, Defined Benefit | Fair Value, Inputs, Level 1
Fair value of plan assets at beginning of the year	28,830	21,092
Ending balance	28,830	21,092
Pension Plans, Defined Benefit | Fair Value, Inputs, Level 1 | Equity Securities
Fair value of plan assets at beginning of the year	17,871	14,716
Ending balance	17,871	14,716
Pension Plans, Defined Benefit | Fair Value, Inputs, Level 1 | Debt Securities
Fair value of plan assets at beginning of the year	10,924	6,092
Ending balance	10,924	6,092
Pension Plans, Defined Benefit | Fair Value, Inputs, Level 1 | Money Market Funds
Fair value of plan assets at beginning of the year	35	284
Ending balance	35	284
Pension Plans, Defined Benefit | Fair Value, Inputs, Level 2
Fair value of plan assets at beginning of the year	243	2,273
Ending balance	243	2,273
Pension Plans, Defined Benefit | Fair Value, Inputs, Level 2 | Hedge Funds
Fair value of plan assets at beginning of the year	243	2,273
Ending balance	243	2,273
Pension Plans, Defined Benefit | Fair Value, Inputs, Level 3
Fair value of plan assets at beginning of the year		1,395
Ending balance		1,395
Pension Plans, Defined Benefit | Fair Value, Inputs, Level 3 | Real Estate
Fair value of plan assets at beginning of the year		1,395
Ending balance		$ 1,395