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Fair Value Measurements (Tables)
 6 Months Ended
Jun. 30, 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 June 30, 2016 and December 31, 2015:

Assets

To estimate the fair value of its equity and U.S. Treasury securities (Level 1), 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).

  
Level 1
  
Level 2
  
Level 3
  
Total
June 30, 2016
 
Equity securities 
 
$
50
  
$
—
  
$
—
  
$
50
 
U.S. Treasury securities (cash equivalents)
 
$
4,093
  
$
—
  
$
—
  
$
4,093
 

  
Level 1
  
Level 2
  
Level 3
  
Total
December 31, 2015
 
Equity securities 
 
$
56
  
$
—
  
$
—
  
$
56
 
U.S. Treasury securities (cash equivalents)
 
$
4,089
  
$
—
  
$
—
  
$
4,089