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Note 8 - Comprehensive Income (Loss) (Details) - Comprehensive Income (Loss) (USD $)	12 Months Ended
	Dec. 30, 2013	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at December 31, 2012, net of tax of $2,592	$ 4,235,000	$ 4,235,000		$ 4,235,000
Other comprehensive income before reclassifications, net of tax of $1,298	2,122,000
Amounts reclassified from accumulated other comprehensive income, net of tax of $(120)	(197,000)	(197,000)	[1]
Net current-period other comprehensive income	1,925,000	1,925,000		(470,000)	299,000
Balance at December 31, 2013, net of tax of $3,770	$ 6,160,000	$ 6,160,000		$ 4,235,000	$ 4,235,000
[1] Amounts in parentheses indicate debits to profit/loss

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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