MARKETABLE SECURITIES

9 Months Ended

Sep. 26, 2014

Investments, Debt and Equity Securities [Abstract]

MARKETABLE SECURITIES

MARKETABLE SECURITIES

The following tables present the amortized cost and fair value of our marketable securities, which are carried at fair value (in thousands):

	September 26, 2014				December 27, 2013
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Certificates of deposit (1)	$	1,750	$	1,746	$	10,000	$	9,900
Variable-rate demand notes	—		—		5,750		5,750
Commercial paper	—		—		5,000		5,000
	$	1,750	$	1,746	$	20,750	$	20,650

(1) As of September 26, 2014, all our certificate of deposits were due within one year.

Gross unrealized gains and loss were de minimis for the thirteen and thirty-nine weeks endedSeptember 26, 2014 and September 27, 2013. Our marketable securities have not resulted in any other-than-temporary impairments as of September 26, 2014.