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Fair Value of Financial Instruments (Tables)
 6 Months Ended
Jul. 02, 2016
Fair Value Disclosures [Abstract]  
Schedule of Fair Value of Financial Instruments
 
Fair value measurements as of
 
Fair value measurements as of
 
July 2, 2016
 
January 2, 2016
(In thousands)
Total
 
Level 1
 
Level 2
 
Level 3
 
Total
 
Level 1
 
Level 2
 
Level 3
Short-term marketable securities
$
8,814

 
$
8,735

 
$
79

 
$
—

 
$
17,968

 
$
17,888

 
$
80

 
$
—

Foreign currency forward exchange contracts, net
4

 
—

 
4

 
—

 
(12
)
 
—

 
(12
)
 
—

Total fair value of financial instruments
$
8,818

 
$
8,735

 
$
83

 
$
—

 
$
17,956

 
$
17,888

 
$
68

 
$
—