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Note 2 - Finance Receivables (Details) - The Carry Value of Finance Receivable (USD $)
Sep. 30, 2013
Dec. 31, 2012
Term Loans    
Life Science $ 20,179,000  
Less: current portion (667,000) (230,000)
Total noncurrent portion of finance receivables 19,512,000 6,270,000
Life Science Term Loans [Member]
   
Term Loans    
Life Science 12,270,000  
Life Science Royalty Purchases [Member]
   
Term Loans    
Life Science $ 7,909,000