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Composition of Certain Financial Statement Items (Details 1) (USD $)
Jun. 30, 2012
Jun. 30, 2011
Property, Plant, Equipment and Leasehold Improvements    
Land   $ 278,000
Building   641,000
Leasehold improvements 2,307,000 2,289,000
Equipment 6,735,000 6,993,000
Total 9,042,000 10,201,000
Accumulated depreciation (6,503,000) (6,540,000)
Property, plant, equipment and leasehold improvements, net $ 2,539,000 $ 3,661,000