XML 67 R53.htm IDEA: XBRL DOCUMENT v2.4.0.6
Intangible Assets (Narrative) (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Acquired Finite-Lived Intangible Assets [Line Items]      
Amortization of intangible assets $ 466,126 $ 655,302 $ 686,911
Additions to intangible assets 2,071,926 180,269 191,483
Amortization of intangible assets, next twelve months 700,000    
Amortization of intangible assets, year two 700,000    
Amortization of intangible assets, year three 700,000    
Amortization of intangible assets, year four 700,000    
Amortization of intangible assets, year five 700,000    
Patents
      
Acquired Finite-Lived Intangible Assets [Line Items]      
Additions to intangible assets $ 1,700,000    
Product, Kristalose | Product and License Rights
      
Acquired Finite-Lived Intangible Assets [Line Items]      
Intangible assets, useful life 15 years    
Product Rights Agreement, U.S. Commercialization Rights for Kristalose from Inalco Biochemicals, Inc. and Inalco S.p.A. | Product, Kristalose | Product and License Rights
      
Acquired Finite-Lived Intangible Assets [Line Items]      
Product rights agreement, quarterly payments, expiration date 7 years