Annual report pursuant to section 13 and 15(d)

OCAST Grant - Additional Information (Detail)

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OCAST Grant - Additional Information (Detail) (USD $)
1 Months Ended 12 Months Ended 144 Months Ended
Nov. 19, 2008
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
Aug. 31, 2012
Dec. 31, 2009
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]            
Grant receivable         $ 13,029 $ 299,984
Amount earned from grant 800,000,000 63,668 86,323 281,492    
Direct costs incurred and for the use of the OU lab facilities   13,071 37,363      
2009 | Maximum
           
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]            
Amount owed in direct costs           $ 149,940