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Note 4 - Inventories (Detail) - Inventories (USD $)
Dec. 31, 2012
Dec. 31, 2011
Raw materials $ 1,441,370 $ 1,686,880
Work-in-process * 304,916 [1] 507,943 [1]
Finished goods 996,619 37,250
Totals $ 2,742,905 $ 2,232,073
[1] See supplemental cash flow information