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COMPREHENSIVE INCOME (LOSS)
 12 Months Ended
Dec. 31, 2012
COMPREHENSIVE INCOME (LOSS) [Abstract]  
COMPREHENSIVE INCOME (LOSS)
8. COMPREHENSIVE INCOME (LOSS)
 
Comprehensive income (loss) was comprised of net income (loss) plus or minus market value adjustments related to marketable securities. The components of comprehensive income (loss) were as follows:
 
   
2012
  
2011
  
2010
 
   
(in thousands)
 
           
Net income (loss)
 $2,179  $(2,857) $(655)
              
Other comprehensive income (loss):
            
Reclassification adjustment for realized gains on marketable securities, included in net income, net of income taxes
  (1,009)  (526)  (189)
Reclassification adjustment for unrealized losses on marketable securities, included in net income, net of income taxes
  44   196   37 
Change in fair value of marketable securities, net of income taxes
  495   629   1,495 
              
Total comprehensive income (loss)
 $1,709  $(2,558) $688