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Fair Value Measurements
12 Months Ended
Dec. 31, 2015
Fair Value Measurements [Abstract]  
Fair Value Measurements
3. Fair Value Measurements

The Company has various financial instruments that must be measured at fair value on a recurring basis, including marketable debt and equity securities held by Astec Insurance, and marketable equity securities held in an unqualified Supplemental Executive Retirement Plan (“SERP”). The financial assets held in the SERP also constitute a liability of the Company for financial reporting purposes. The Company’s subsidiaries also occasionally enter into foreign currency exchange contracts to mitigate exposure to fluctuations in currency exchange rates.

For cash and cash equivalents, trade receivables, other receivables, revolving debt and accounts payable, the carrying amount approximates the fair value because of the short-term nature of these instruments. Investments are carried at their fair value based on quoted market prices for identical or similar assets or, where no quoted prices exist, other observable inputs for the asset. The fair values of foreign currency exchange contracts are based on quotations from various banks for similar instruments using models with market based inputs.
As indicated in the tables below, the Company has determined that its financial assets and liabilities at December 31, 2015 and 2014 are level 1 and level 2 in the fair value hierarchy:

As indicated in the tables below, the Company has determined that its financial assets and liabilities at December 31, 2015 and 2014 are level 1 and level 2 in the fair value hierarchy:

  
December 31, 2015
 
  
Level 1
  
Level 2
  
Level 3
  
Total
 
Financial Assets:
        
Trading equity securities:
        
SERP money market fund
 
$
445
  
$
--
  
$
--
  
$
445
 
SERP mutual funds
  
2,864
   
--
   
--
   
2,864
 
Preferred stocks
  
742
   
--
   
--
   
742
 
Trading debt securities:
                
Corporate bonds
  
3,756
   
141
   
--
   
3,897
 
Municipal bonds
  
--
   
1,811
   
--
   
1,811
 
Floating rate notes
  
84
   
--
   
--
   
84
 
U.S. Treasury bills
  
404
   
--
   
--
   
404
 
Savings bonds
  
77
   
--
   
--
   
77
 
Other government bonds
  
--
   
2,755
   
--
   
2,755
 
Derivative financial instruments
  
--
   
1,265
   
--
   
1,265
 
Total financial assets
 
$
8,372
  
$
5,972
  
$
--
  
$
14,344
 
Financial Liabilities:
                
SERP liabilities
 
$
--
  
$
5,869
  
$
--
  
$
5,869
 
Total financial liabilities
 
$
--
  
$
5,869
  
$
--
  
$
5,869
 

  
December 31, 2014
 
  
Level 1
  
Level 2
  
Level 3
  
Total
 
Financial Assets:
        
Trading equity securities:
        
SERP money market fund
 
$
532
  
$
--
  
$
--
  
$
532
 
SERP mutual funds
  
3,195
   
--
   
--
   
3,195
 
Preferred stocks
  
973
   
--
   
--
   
973
 
Trading debt securities:
                
Corporate bonds
  
2,825
   
1,184
   
--
   
4,009
 
Municipal bonds
  
--
   
2,060
   
--
   
2,060
 
Floating rate notes
  
100
   
322
   
--
   
422
 
U.S. Treasury bills
  
622
   
--
   
--
   
622
 
Other government bonds
  
--
   
1,496
   
--
   
1,496
 
Derivative financial instruments
  
--
   
547
   
--
   
547
 
Total financial assets
 
$
8,247
  
$
5,609
  
$
--
  
$
13,856
 
Financial Liabilities:
                
SERP liabilities
 
$
--
  
$
8,128
  
$
--
  
$
8,128
 
Total financial liabilities
 
$
--
  
$
8,128
  
$
--
  
$
8,128
 

The Company reevaluates the volume of trading activity for each of its investments at the end of each reporting period and adjusts the level within the fair value hierarchy as needed. Due to increased trading activity, $292 of investments included in Level 2 at December 31, 2014 were transferred to Level 1 at December 31, 2015. In addition, due to decreased trading activity, $141 of investments included in Level 1 at December 31, 2014 were transferred to Level 2 at December 31, 2015.