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Major Customers (Tables)
3 Months Ended
Sep. 30, 2012
Major Customers [Abstract]  
Sales by major customers
                                                                 
    As of and for the three months ended September 30,  
    2012     2011  
    Sales     Percent of
Total
    Accounts
Receivable
    Percent of
Total
    Sales     Percent of
Total
    Accounts
Receivable
    Percent of
Total
 

Customer 1

  $ 118,000       3   $ —         —     $ 2,388,000       47   $ 632,000       40

Customer 2

  $ 1,936,000       56   $ 1,082,000       59   $ 1,661,000       33   $ 545,000       34
Sales by product categories for major customers
                 
    Three months ended September 30,  
    2012     2011  

Product A

  $ —       $ 793,000  

Product B

    —         1,191,000  

Repairs

    118,000       404,000  
   

 

 

   

 

 

 

Total

  $ 118,000     $ 2,388,000