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Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) (USD $)
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Revenues:    
Professional product revenues $ 11,897,174 $ 10,546,648
Consumer product revenues 978,768 0
Service revenues 3,770,243 3,835,187
Royalty revenues 1,798,062 3,218,339
Other revenues 555,556 555,556
Total revenues 18,999,803 18,155,730
Costs and expenses:    
Cost of professional product revenues 4,901,098 4,303,566
Cost of consumer product revenues 834,383 41,536
Cost of service revenues 1,659,963 1,792,167
Cost of royalty revenues 719,225 1,287,335
Research and development 3,372,261 3,647,916
Selling and marketing 6,681,525 5,575,771
General and administrative 3,151,967 3,485,401
Total costs and expenses 21,320,422 20,133,692
Loss from operations (2,320,619) (1,977,962)
Interest income 89,003 113,381
Other income 11,802 9,842
Loss before income taxes (2,219,814) (1,854,739)
Provision for income taxes 71,978 39,253
Net loss (2,291,792) (1,893,992)
Net loss per share:    
Basic $ (0.12) $ (0.10)
Diluted $ (0.12) $ (0.10)
Weighted average number of shares outstanding:    
Basic 18,858,464 18,652,038
Diluted 18,858,464 18,652,038
Comprehensive loss:    
Net loss (2,291,792) (1,893,992)
Unrealized (loss) gain on marketable securities, net of taxes (24,827) 21,024
Foreign currency translation adjustment (19,468) (8,325)
Comprehensive loss $ (2,336,087) $ (1,881,293)