Cash, Cash Equivalents and Short-term Investments - Short-Term Investments by Security Type (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 28, 2013
|
Dec. 29, 2012
|
---|---|---|
Schedule of Available-for-sale Securities [Line Items] | ||
Amortized Cost | $ 7,407 | |
Gross Unrealized Gains | 14 | |
Gross Unrealized Losses | ||
Estimated Fair Value | 1,200 | 7,421 |
Municipal Securities [Member]
|
||
Schedule of Available-for-sale Securities [Line Items] | ||
Amortized Cost | 1,200 | 1,470 |
Gross Unrealized Gains | ||
Gross Unrealized Losses | ||
Estimated Fair Value | 1,200 | 1,470 |
Government-Sponsored Enterprise Securities [Member]
|
||
Schedule of Available-for-sale Securities [Line Items] | ||
Amortized Cost | 5,937 | |
Gross Unrealized Gains | 14 | |
Gross Unrealized Losses | ||
Estimated Fair Value | $ 5,951 |