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5. Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment [Table Text Block]
    2012     2011  
Computer hardware and software   $ 89,971     $ 120,835  
Furniture and fixtures     29,484       24,484  
Machinery and equipment     407,039       497,983  
Office equipment     3,869       3,869  
Leasehold improvements     46,891        
Vehicle     18,680       18,680  
      595,934       665,851  
Less accumulated depreciation and amortization     (488,525 )     (550,514 )
    $ 107,409     $ 115,337