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Note 3 - Inventories (Details) - Inventories (USD $)
Jun. 30, 2014
Dec. 31, 2013
Inventories [Abstract]    
Finished products $ 428,066 $ 373,281
Work-in-process 859,839 817,456
Raw materials 2,065,125 1,548,076
Net Inventories $ 3,353,030 $ 2,738,813