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Note 3 - Property and Equipment (Details) - USD ($)
Jun. 30, 2016
Jun. 30, 2015
Machinery and equipment $ 2,222,670 $ 2,923,577
Buildings and structures 401,470 1,385,125
Computers and office equipment 173,313 175,248
Total 2,797,453 4,483,950
Less accumulated depreciation (2,793,194) (2,506,731)
Net $ 4,259 $ 1,977,219