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Stockholders' Equity and Share-Based Compensation - Additional Information 1 (Detail) (USD $) In Thousands, except Share data, unless otherwise specified | 0 Months Ended | 1 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2013 | Mar. 31, 2013 | Apr. 30, 2013 | Jun. 28, 2014 | Dec. 28, 2013 | Jun. 29, 2013 | Mar. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Percentage of changes of control of company and sales or other dispositions by company |  |  |  | More than 50% |  |  |
Series A Convertible Preferred Stock [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Series A convertible preferred stock, shares authorized |  |  |  | 4,150,000 | 4,150,000 |  | 4,150,000
Aggregate shares to be sold |  |  |  |  |  |  | 4,150,000
Series A convertible preferred stock, par value |  |  |  | $ 0.001 | $ 0.001 |  | $ 0.001
Convertible common stock initial conversion price |  |  |  | $ 1.45 |  |  | $ 1.45
Preferred stock purchase, amount |  | $ 6,017 |  |  |  |  |
Preferred stock sold |  | 4,000,000 | 150,000 |  |  |  |
Aggregate proceeds of preferred stock |  | 5,800 | 217 |  |  |  |
Issuance costs incurred to company |  | 847 |  |  |  |  |
Conversion rate of common stock for each share of Series A preferred stock |  |  |  | 1 |  |  |
Consecutive trading days for calculating weighted average price for the common stock |  |  |  | 30 days |  |  |
Minimum common stock price for consecutive thirty trading days for stock conversion |  |  |  | $ 4.35 |  |  |
Amount per share to series A preferred in case of liquidation |  |  |  | $ 1.45 | $ 1.45 | $ 1.45 |
Preferred stock annual dividend rate |  |  |  | $ 0.058 |  |  |
Preferred stock voting rights |  |  |  | The Series A Preferred shall each be entitled to one vote per share for each share of common stock issuable upon conversion thereof (excluding from any such calculation any dividends accrued on such shares) and shall vote together with the holders of common stock as a single class on any matter on which the holders of common stock are entitled to vote. |  |  |
Cash dividends on amended credit |  |  |  | 400 |  |  |
Common stock dividends during the period |  |  |  | $ 60 | $ 60 |  |
Common stock issued in dividend payment on Series A convertible preferred stock | 24,000 |  |  | 16,000 |  |  |
Dividend payment date |  |  |  | Jun. 30, 2014 |  |  |

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