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Organization and Significant Accounting Policies - Fair Value of Assets and Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
ASSETS:    
Cash equivalents $ 5 $ 5
Level 1 [Member]
   
ASSETS:    
Cash equivalents 5 5
Level 2 [Member]
   
ASSETS:    
Cash equivalents      
Level 3 [Member]
   
ASSETS:    
Cash equivalents