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Note 6 - Inventories (Details) - Inventories (USD $)
Jun. 30, 2014
Dec. 31, 2013
Inventories [Abstract]    
Raw materials $ 6,294,799 $ 5,926,030
Work-in-process 2,165,551 2,308,233
Finished goods 5,403,815 2,762,522
Total $ 13,864,165 $ 10,996,785