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Composition of Certain Financial Statement Items (Details) (USD $)
Jun. 30, 2012
Jun. 30, 2011
Inventories    
Raw Materials $ 1,087,000 $ 1,659,000
Work in process 579,000 746,000
Finished goods 1,125,000 1,298,000
Net Inventories $ 2,791,000 $ 3,703,000