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Consolidated Statements of Cash Flows (Parenthetical) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Supplemental disclosures of non-cash transactions:      
Patent costs accrued from Auxilium $ 60,000    
Patent amortization expenses 64,323 64,190 50,685
Decreased in deferred tax assets and additional paid in capital due to cancelation of stock options $ 75,000    
Stock options, cancelled (in shares) 15,000