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Note 4 - Inventories (Details) - Inventories (USD $)
Dec. 31, 2013
Dec. 31, 2012
Inventories [Abstract]    
Raw materials $ 4,058,350 $ 1,441,370
Work-in-process 300,460 [1] 304,916 [1]
Finished goods 138,539 996,619
Totals $ 4,497,349 $ 2,742,905
[1] See supplemental cash flow information