Note 4 - Inventories (Details) - Inventories (USD $)	Dec. 31, 2013	Dec. 31, 2012
Inventories [Abstract]
Finished goods	$ 37,259,000	$ 27,382,000
Work in process	111,000	71,000
Raw materials	12,116,000	11,793,000
	$ 49,486,000	$ 39,246,000

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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.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

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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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-Publisher FASB

-Name Accounting Standards Codification

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-Topic 330

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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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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