|
Note 7. Equity Incentive Plan and Stock-based Compensation (Details) - Unrecognized Stock-based Compensation (USD $)
In Thousands, unless otherwise specified
|
12 Months Ended |
|
Dec. 28, 2014
|
| Note 7. Equity Incentive Plan and Stock-based Compensation (Details) - Unrecognized Stock-based Compensation [Line Items] |
|
| Unrecognized stock-based compensation |
$ 33,172 |
| Weighted-average amortization period |
1 year 3 days |
| Employee Stock Option [Member] |
|
| Note 7. Equity Incentive Plan and Stock-based Compensation (Details) - Unrecognized Stock-based Compensation [Line Items] |
|
| Unrecognized stock-based compensation |
1,412 |
| Weighted-average amortization period |
332 days |
| Restricted Stock Units (RSUs) [Member] |
|
| Note 7. Equity Incentive Plan and Stock-based Compensation (Details) - Unrecognized Stock-based Compensation [Line Items] |
|
| Unrecognized stock-based compensation |
18,099 |
| Weighted-average amortization period |
1 year 18 days |
| PSUs and Key Executive RSUs [Member] |
|
| Note 7. Equity Incentive Plan and Stock-based Compensation (Details) - Unrecognized Stock-based Compensation [Line Items] |
|
| Unrecognized stock-based compensation |
13,442 |
| Weighted-average amortization period |
361 days |
| Employee Stock Purchase Plan [Member] |
|
| Note 7. Equity Incentive Plan and Stock-based Compensation (Details) - Unrecognized Stock-based Compensation [Line Items] |
|
| Unrecognized stock-based compensation |
$ 219 |
| Weighted-average amortization period |
36 days |