Note 7 - Inventories (Details) - Inventories (USD $)	Sep. 30, 2014	Dec. 31, 2013
Inventories [Abstract]
Raw materials	$ 6,843,441	$ 5,926,030
Work-in-process	2,325,667	2,308,233
Finished goods	4,413,348	2,762,522
Total	$ 13,582,456	$ 10,996,785

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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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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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