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Note 4 - Inventories (Detail) (USD $)	Mar. 29, 2015	Dec. 31, 2014
Note 4 - Inventories Detail
Raw materials	$ 14,056,000us-gaap_InventoryRawMaterials	$ 15,100,000us-gaap_InventoryRawMaterials
Work in process	1,953,000us-gaap_InventoryWorkInProcess	1,489,000us-gaap_InventoryWorkInProcess
Finished products	8,766,000us-gaap_InventoryFinishedGoods	9,497,000us-gaap_InventoryFinishedGoods
Total	$ 24,775,000us-gaap_InventoryNet	$ 26,086,000us-gaap_InventoryNet

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 6

-Subparagraph a

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-Name Accounting Standards Codification

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-Subparagraph (SX 210.5-02.6(a)(1))

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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-Publisher SEC

-Name Regulation S-X (SX)

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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-Publisher SEC

-Name Regulation S-X (SX)

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