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Property and equipment
12 Months Ended
Dec. 31, 2011
Property and Equipment [Abstract]  
Property, Plant and Equipment Disclosure [Text Block]
PROPERTY AND EQUIPMENT
At December 31, property and equipment consisted of the following:
 
2011
 
2010
 
2009
Computer equipment and software
$
226,900

 
$
177,800

 
$
126,100

Office furniture and equipment
19,200

 
9,300

 
3,800

Website development costs
314,200

 
314,200

 
314,200

 
560,300

 
501,300

 
444,100

Accumulated depreciation
(469,300
)
 
(429,500
)
 
(403,600
)
 
$
91,000

 
$
71,800

 
$
40,500


Depreciation expense of property and equipment for the years ended December 31, 2011, 2010, and 2009 amounted to $39,700, $25,900, and $17,400