XML 18 R33.htm IDEA: XBRL DOCUMENT v2.4.0.6
Marketable Securities (Tables)
 12 Months Ended
Dec. 31, 2012
Investments, Debt and Equity Securities [Abstract]  
Available-for-sale Securities [Table Text Block]

Available-for-sale securities, classified as other current assets, is as:

 

    December 31, 2012  
    Amortized
Cost		     Unrealized Gains in
Comprehensive
Income		     Unrealized Losses in
Comprehensive
Income		     Sales of
Securities		     Fair Value  
                                         
Available-for-sale securities   $ 150,793     $ 30,363     $ (948 )   $ (180,208 )   $ -  

 

    December 31, 2011  
    Amortized
Cost		     Unrealized Gains in
Accumulated Other
Comprehensive
Income		     Unrealized Losses in
Accumulated Other
Comprehensive
Income		     Sales of
Securities		     Fair Value  
                                         
Available-for-sale securities   $ 365,786     $ 83,817     $ (298,810 )   $ -     $ 150,793