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Stock Options (Schedule Of Options Issued) (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Issued 87,500 186,745 396,000  
Exercise Price $ 0.61 $ 0.61 $ 0.60 $ 0.42
$0.75 [Member]
        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Issued 25,000      
Exercise Price $ 0.75      
Grant Date Jan. 03, 2012      
Expiration Date Jan. 02, 2017      
$0.75 [Member] | Non-Executive Director [Member]
        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Issued 6,250      
$1.07 [Member]
        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Issued 25,000      
Exercise Price $ 1.07      
Grant Date Apr. 02, 2012      
Expiration Date Apr. 01, 2017      
$1.07 [Member] | Non-Executive Director [Member]
        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Issued 6,250      
$0.81 [Member]
        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Issued 18,750      
Exercise Price $ 0.81      
Grant Date Jul. 02, 2012      
Expiration Date Jul. 01, 2017      
$0.81 [Member] | Non-Executive Director [Member]
        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Issued 6,250      
$0.73 [Member]
        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Issued 18,750      
Exercise Price $ 0.73      
Grant Date Oct. 01, 2012      
Expiration Date Sep. 30, 2017      
$0.73 [Member] | Non-Executive Director [Member]
        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Issued 6,250