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6. Inventories (Details) (USD $)
Dec. 31, 2013
Jun. 30, 2013
Inventories Details    
Raw materials $ 1,358,300 $ 1,336,800
Work-in-process 396,300 254,000
Finished goods 116,600 114,800
Inventory $ 1,871,200 $ 1,705,600