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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2012
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]  
Property and Equipment, Useful Lives
Property and equipment are stated at cost, net of accumulated depreciation. Depreciation is on a straight-line basis over the estimated useful lives of the assets, generally as follows:
 
     
   
Useful Lives
Leasehold improvements
 
Lesser of useful life or term of lease
Equipment and furniture
 
3 years
Computer equipment
 
3 years