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Operations And Liquidity (Details) (USD $)
2 Months Ended 1 Months Ended 12 Months Ended
Mar. 01, 2013
Feb. 15, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Feb. 19, 2013
Tyson Foods, Inc [Member]
Feb. 19, 2013
Dynamic Fuels, LLC [Member]
Dec. 31, 2012
NASDAQ [Member]
Cash and cash equivalents available to fund operations and investing activities     $ 15,909,000 $ 22,601,000 $ 12,513,000 $ 25,012,000      
Working capital loan   2,300,000         2,300,000    
Total working capital contributions               4,600,000  
Sale of pilot plant $ 5,798,000                
Minimum share trading price                 $ 1.00
Period of time alloted to regain compliance                 180 days
Additional time requested to regain compliance                 180 days