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Inventories (Details) (USD $)
Sep. 30, 2012
Jun. 30, 2012
Inventories    
Raw materials $ 1,415,000 $ 1,087,000
Work in process 879,000 579,000
Finished goods 1,188,000 1,125,000
Total inventories $ 3,482,000 $ 2,791,000