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Sales (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Composition sales by principal        
Delivery Income $ 29,990 $ 38,871.00    
Returns (-) (2,930) 0    
Total 1,287,709 1,595,943 3,577,881 2,029,074
Interactive Whiteboards [Member]
       
Composition sales by principal        
Product sales 484,063 1,093,173    
Electronic Parts [Member]
       
Composition sales by principal        
Product sales 0 416,336    
Voting Systems [Member]
       
Composition sales by principal        
Product sales 0 4,738    
Wireless Tablets [Member]
       
Composition sales by principal        
Product sales 4,977 5,500    
LCD Components [Member]
       
Composition sales by principal        
Product sales 0 615    
Interactive LCD/LEDs [Member]
       
Composition sales by principal        
Product sales 689,648 0    
Others [Member]
       
Composition sales by principal        
Product sales $ 81,961 $ 75,581