Note 6. RETIREMENT BENEFIT PLANS (Details) - Information regarding the Company’s net periodic benefit cost for pension and other postretirement b (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 27, 2014 ForTheThreeMonthsEndedJune272014	Jun. 28, 2013 ForTheThreeMonthsEndedJune282013	Jun. 27, 2014 ForTheSixMonthsEndedJune272014	Jun. 28, 2013 SixMonthsEnded06-28-2013
Note 6. RETIREMENT BENEFIT PLANS (Details) - Information regarding the Company’s net periodic benefit cost for pension and other postretirement b [Line Items]
Interest cost	$ 16	$ 15	$ 30	$ 29
Expected return on plan assets	(17)	(14)	(32)	(28)
Amortization of net loss	10	11	19	23
Net periodic benefit cost	$ 9	$ 12	$ 17	$ 24

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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

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Interest and debt related expenses associated with nonoperating financing activities of the entity.

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Amount after tax of cost (credit) of benefit changes attributable to plan participants' prior service resulting from a plan amendment or plan initiation that has not been recognized in net periodic benefit cost (credit).

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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