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Long-Term Debt And Credit Facilities (Schedule Of Debt Outstanding) (Details) - USD ($)
6 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Debt Instrument [Line Items]    
Less current maturities $ (3,000,000)  
Total long term debt 18,114,408 $ 18,080,159
Carrying Amount [Member]    
Debt Instrument [Line Items]    
Total debt 21,114,408 18,080,159
Less current maturities (3,000,000)  
Total long term debt 18,114,408 18,080,159
Estimated Fair Value [Member]    
Debt Instrument [Line Items]    
Total debt 21,405,468 18,429,177
Less current maturities (3,000,000)  
Total long term debt $ 18,405,468 18,429,177
Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Line of credit facility, maturity date Mar. 31, 2018  
Revolving Credit Facility [Member] | Carrying Amount [Member]    
Debt Instrument [Line Items]    
Total debt $ 3,000,000  
Revolving Credit Facility [Member] | Estimated Fair Value [Member]    
Debt Instrument [Line Items]    
Total debt 3,000,000  
Healthcare Royalty Partners Debt [Member] | Term Loan [Member] | Carrying Amount [Member]    
Debt Instrument [Line Items]    
Total debt 18,114,408 18,080,159
Healthcare Royalty Partners Debt [Member] | Term Loan [Member] | Estimated Fair Value [Member]    
Debt Instrument [Line Items]    
Total debt $ 18,405,468 $ 18,429,177