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Liquidity and Management's Plans (Details) (USD $)
Sep. 30, 2013
Dec. 31, 2012
Sep. 30, 2012
Dec. 31, 2011
Liquidity and management's plans [Abstract]        
Cash and cash equivalents $ 6,061,756 $ 6,754,485 $ 7,621,226 $ 4,112,326
Total current assets 25,845,711 18,088,791    
Total current liabilities $ 8,331,394 $ 5,070,772