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Major Customers (Details) (USD $)
3 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Customer 1 [Member]
   
Revenue and accounts receivable by major customers    
Sales $ 118,000 $ 2,388,000
Percentage of total sales 3.00% 47.00%
Accounts Receivable    632,000
Percentage of total accounts receivable    40.00%
Customer 2 [Member]
   
Revenue and accounts receivable by major customers    
Sales 1,936,000 1,661,000
Percentage of total sales 56.00% 33.00%
Accounts Receivable $ 1,082,000 $ 545,000
Percentage of total accounts receivable 59.00% 34.00%