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Marketable Debt Securities
 9 Months Ended
Oct. 01, 2016
Investments [Abstract]  
Investments
Marketable Debt Securities

The following tables set forth our investments in marketable debt securities at October 1, 2016 and January 2, 2016 (in thousands):
 
October 1, 2016
 
Amortized
Cost
 
Unrealized
Gains
 
Unrealized
Losses
 
Fair
Value
Corporate bonds
$
3,212

 
$
—

 
$
—

 
$
3,212

U.S. Treasury securities
2,004

 
—

 
—

 
2,004

Commercial paper
747

 
—

 
—

 
747

 
$
5,963

 
$
—

 
$
—

 
$
5,963


 
January 2, 2016
 
Amortized
Cost
 
Unrealized
Gains
 
Unrealized
Losses
 
Fair
Value
Corporate bonds
$
7,532

 
$
—

 
$
(19
)
 
$
7,513

Municipal bonds
5,114

 
—

 
(3
)
 
5,111

U.S. Agency bonds
2,497

 
—

 
(1
)
 
2,496

 
$
15,143

 
$
—

 
$
(23
)
 
$
15,120



Maturities of marketable debt securities were as follows (in thousands):
 
October 1, 2016
 
January 2, 2016
 
Amortized
Cost
 
Fair
Value
 
Amortized
Cost
 
Fair
Value
Marketable debt securities – current (due in less than one year)
$
5,963

 
$
5,963

 
$
6,575

 
$
6,567

Marketable debt securities – non-current (due in one to two years)
—

 
—

 
8,568

 
8,553

 
$
5,963

 
$
5,963

 
$
15,143

 
$
15,120



During the nine months ended October 1, 2016 and October 3, 2015, we received proceeds of $15.1 million and $101.0 million, respectively, from marketable debt securities. During the three months ended October 3, 2015, we received proceeds of $59.2 million from marketable debt securities. There were no proceeds from marketable debt securities for the three months ended October 1, 2016.