XML 27 R24.htm IDEA: XBRL DOCUMENT v2.4.0.6
Summary of Significant Accounting Policies (Details Textual) (USD $)
6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2011
Restricted Cash      
Certificate of deposit $ 50,000    
Restricted cash 50,000   150,000
Loss Per Common Share      
Outstanding stock options and warrants 32,549,025 35,254,835  
Income taxes      
Liability for unrecognized tax benefits 0   0
Interest and Penalties 0 0  
Net operating loss carryovers 87,000,000   83,000,000
Change in valuation allowance $ 1,778,656    
Net operating loss maturity date 2023    
State income tax maturity date 2013