Cash and Investments

3 Months Ended

Mar. 26, 2016

Investments Debt And Equity Securities [Abstract]

Cash and Investments

Note 4. Cash and Investments

The following tables present cash, cash equivalents, and available-for-sale investments as of the following dates (in thousands):

	March 26, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Market Value
Cash	$	33,145	$	—	$	—		$	33,145
Cash equivalents:
Money market funds		1,075		—		—			1,075
Commercial paper and corporate debt securities		4,452		—		—			4,452
Marketable securities:
Commercial paper		699		—		—			699
U.S. Treasury securities		6,971		2		—			6,973
U.S. Government agency securities		23,231		4		(8	)		23,227
Municipal securities		2,634		—		(3	)		2,631
Corporate debt securities		11,147		2		(6	)		11,143
Total cash, cash equivalents, and marketable securities	$	83,354	$	8	$	(17	)	$	83,345
	December 26, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Market Value
Cash	$	32,996	$	—	$	—		$	32,996
Cash equivalents:
Money market funds		590		—		—			590
Commercial paper and corporate debt securities		4,568		—		—			4,568
Marketable securities:
Commercial paper		1,884		—		—			1,884
U.S. Treasury securities		4,411		—		(10	)		4,401
U.S. Government agency securities		20,193		1		(29	)		20,165
Municipal securities		3,747		1		(3	)		3,745
Corporate debt securities		14,759		—		(23	)		14,736
Total cash, cash equivalents, and marketable securities	$	83,148	$	2	$	(65	)	$	83,085

Available-for-sale marketable securities, readily convertible to cash, with maturity dates of 90 days or less are classified as cash equivalents, while those with maturity dates greater than 90 days are classified as marketable securities within short-term assets. All marketable securities as of March 26, 2016 and December 26, 2015, were available-for-sale and reported at fair value based on the estimated or quoted market prices as of the balance sheet date.  Gross realized gains and losses on sale of securities are recorded in other income, net, in our statement of operations.  Net realized gains and losses for three months ended March 26, 2016 and March 28, 2015 were $0.1 million and $0.1 million, respectively.

Unrealized gains or losses, net of tax effect, are recorded in accumulated other comprehensive income (loss) within stockholders’ equity. Both the gross unrealized gains and gross unrealized losses for the three months ended March 26, 2016 and March 28, 2015 were insignificant and no marketable securities had other than temporary impairment. All marketable securities as of March 26, 2016 and December 26, 2015, had maturity dates of less than two years and were not invested in foreign entities.