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Fair Value Measurements (Tables)
 3 Months Ended
Mar. 31, 2016
Fair Value Measurements [Abstract]  
Fair Value on Recurring Basis
The following is a summary of valuation techniques utilized by the Company for its significant financial and non-financial assets and liabilities as of March 31, 2016 and December 31, 2015:

Assets

To estimate the fair value of its equity and U.S. Treasury securities, the Company obtains current market pricing from quoted market sources or uses pricing for identical securities. Assets measured at fair value on a recurring basis are summarized below (in thousands).

  
Quoted Prices in Active Markets for Identical Assets
 (Level 1)
  
Significant Other Observable Inputs
 (Level 2)
  
Significant Unobservable Inputs
 (Level 3)
  
Total
March 31, 2016
 
Equity securities 
 
$
53
  
$
—
  
$
—
  
$
53
 
U.S. Treasury securities (cash equivalents)
 
$
4,091
  
$
—
  
$
—
  
$
4,091
 

  
Quoted Prices in Active Markets for Identical Assets
 (Level 1)
  
Significant Other Observable Inputs
 (Level 2)
  
Significant Unobservable Inputs
 (Level 3)
  
Total
December 31, 2015
 
Equity securities 
 
$
56
  
$
—
  
$
—
  
$
56
 
U.S. Treasury securities (cash equivalents)
 
$
4,089
  
$
—
  
$
—
  
$
4,089
 
 
There were no transfers from level 2 to level 3 during the period. There were no level 2 or 3 assets  as of March 31, 2016 or December 31, 2015.