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12. GEOGRAPHICAL INFORMATION (Tables)
3 Months Ended
Mar. 31, 2014
Segment Reporting [Abstract]  
Geographic breakdown of revenue
    For the three months ended
March 31,
 
    2014     2013  
United States   $ 6,155,000     $ 5,771,000  
Canada     263,000       345,000  
Total revenue   $ 6,418,000     $ 6,116,000  
Geographic breakdown of long-term tangible assets
      As of March 31,  
      2014       2013  
United States   $ 3,405,000     $ 3,220,000  
Canada     18,000       17,000  
Total assets   $ 3,423,000     $ 3,237,000