Short-Term Investments (Tables)

6 Months Ended

Jul. 03, 2015

Cash and Cash Equivalents [Abstract]

Summary of Short-Term Investments

The following table summarizes the Company’s short-term investments (in thousands):

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
As of July 3, 2015
State, municipal and local government agencies bonds	$	8,868	$	4	$	—		$	8,872
Corporate bonds	20,192		—		(30		)	20,162
Total short-term investments	$	29,060	$	4	$	(30	)	$	29,034
As of December 31, 2014
State, municipal and local government agencies bonds	$	13,946	$	16	$	(1	)	$	13,961
Corporate bonds	17,899		3		(16		)	17,886
Total short-term investments	$	31,845	$	19	$	(17	)	$	31,847

Maturities of Short-Term Investments

The following table summarizes the maturities of the Company’s short-term investments (in thousands):

	July 3, 2015		December 31, 2014
Less than one year	$	23,341	$	30,946
Due in 1 - 2 years	5,693		901
Total short-term investments	$	29,034	$	31,847