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Fair Value Measurements and Disclosures (Tables)
3 Months Ended
Mar. 29, 2014
Fair Value Disclosures [Abstract]  
Assets and liabilities measurements at estimated fair value on recurring basis excluding accrued interest components
The following tables present the Company’s assets and liabilities measured at estimated fair value on a recurring basis, excluding accrued interest components, categorized in accordance with the fair value hierarchy (in thousands):
 
 
March 29, 2014
 
December 28, 2013
 
Fair Value Measurements Using Input Types
 
 
 
Fair Value Measurements Using Input Types
 
 
 
Level 1
 
Level 2
 
Level 3
 
Total
 
Level 1
 
Level 2
 
Level 3
 
Total
Assets:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Cash equivalents:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Money market funds
$
586

 
$

 
$

 
$
586

 
$
876

 
$

 
$

 
$
876

Commercial paper and corporate debt securities

 

 

 

 

 
750

 

 
750

    Total cash equivalents
586

 

 

 
586

 
876

 
750

 

 
1,626

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Marketable securities:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
U.S. Treasury, U.S. Government and U.S. Government agency debt securities
5,023

 
11,772

 

 
16,795

 
5,036

 
11,980

 

 
17,016

Commercial paper and corporate debt securities

 
32,409

 

 
32,409

 

 
31,081

 

 
31,081

    Total marketable securities
5,023

 
44,181

 

 
49,204

 
5,036

 
43,061

 

 
48,097

Total (1)
$
5,609

 
$
44,181

 
$

 
$
49,790

 
$
5,912

 
$
43,811

 
$

 
$
49,723

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Liabilities:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Contingent consideration payable
$

 
$

 
$
2,678

 
$
2,678

 
$

 
$

 
$
2,783

 
$
2,783


(1) Excludes cash of $38.2 million and $43.1 million held in operating accounts as of March 29, 2014 and December 28, 2013, respectively.
Fair value measurement on recurring basis, unobservable input reconciliation
Changes in Level 3 liabilities (in thousands)
 
Fair value at December 28, 2013
$
2,783

Payments made to Zygo Corporation
(100
)
Change in fair value included in earnings
(5
)
Fair Value at March 29, 2014
$
2,678