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FAIR VALUE MEASUREMENTS (Tables)
12 Months Ended
Dec. 31, 2012
FAIR VALUE MEASUREMENTS [Abstract]  
Fair Value Assets Measured on Recurring Basis
As of December 31, 2012, the Company held certain investments that are required to be measured at fair value on a recurring basis. The following tables present the Company's fair value hierarchy for these financial assets as of December 31, 2012, 2011 and 2010:

December 31, 2012
 
Fair Value
  
Level 1
  
Level 2
  
Level 3
 
Cash and cash equivalents
 $3,383,737  $3,383,737   -   - 
Certificates of Deposit
  5,120,000   5,120,000   -   - 
         
December 31, 2011
 
Fair Value
  
Level 1
  
Level 2
  
Level 3
 
Cash and cash equivalents
 $3,196,831  $3,196,831    -   - 
Certificates of Deposit
  5,000,000   5,000,000   -   - 
         
December 31, 2010
 
Fair Value
  
Level 1
  
Level 2
  
Level 3
 
Cash and cash equivalents
 $2,470,852  $2,470,852   -   - 
Certificates of Deposit
  5,360,970   5,360,970   -   -