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Stockholders' Equity (Tables) | 12 Months Ended
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Dec. 28, 2013
Activity in Stock Option Plan | The following table summarizes information regarding activity in our stock option plans during the fiscal years ended 2013, 2012 and 2011 (in thousands except share and per share data):
|  |  |  |  | Outstanding Options |
|  | Shares Available for Grant |  |  | Number of Shares |  |  | Aggregate Price |  |  | Weighted Average Exercise Price |
FY 2010: Balances, January 1, 2011 |  |  | 760,137 |  |  |  | 1,618,066 |  |  | $ | 5,906 |  |  | $ | 3.65 |
Additional shares reserved |  |  | 163,378 |  |  |  |  |  |  |  |  |  |  |  |  |
Options granted |  |  | (319,900 | ) |  |  | 319,900 |  |  |  | 1,148 |  |  |  | 3.59 |
Restricted stock granted |  |  | (100,315 | ) |  |  |  |  |  |  |  |  |  |  |  |
Options exercised |  |  | — |  |  |  | (99,291 | ) |  |  | (321 | ) |  |  | 3.24 |
Options cancelled |  |  | 72,274 |  |  |  | (72,274 | ) |  |  | (353 | ) |  |  | 4.88 |
Options expired |  |  | (70,353) |  |  |  | — |  |  |  | — |  |  |  | — |
FY 2011: Balances, December 31, 2011 |  |  | 505,221 |  |  |  | 1,766,401 |  |  |  | 6,380 |  |  |  | 3.61 |
Additional shares reserved |  |  | 391,166 |  |  |  |  |  |  |  |  |  |  |  |  |
Options granted |  |  | (335,050 | ) |  |  | 335,050 |  |  |  | 1,313 |  |  |  | 3.92 |
Restricted stock granted |  |  | (66,665 | ) |  |  |  |  |  |  |  |  |  |  |  |
Options exercised |  |  | — |  |  |  | (174,631 | ) |  |  | (445 | ) |  |  | 2.55 |
Options cancelled |  |  | 356,277 |  |  |  | (356,277 | ) |  |  | (1,550 | ) |  |  | 4.35 |
Options expired |  |  | (108,971) |  |  |  | — |  |  |  | — |  |  |  | — |
FY 2012: Balances, December 29, 2012 |  |  | 741,978 |  |  |  | 1,570,543 |  |  |  | 5,698 |  |  |  | 3.63 |
Additional shares reserved |  |  | 52,128 |  |  |  |  |  |  |  |  |  |  |  |  |
Options granted |  |  | (149,600 | ) |  |  | 149,600 |  |  |  | 851 |  |  |  | 5.69 |
Restricted stock granted |  |  | (234,012 | ) |  |  |  |  |  |  |  |  |  |  |  |
Options exercised |  |  | — |  |  |  | (493,622 | ) |  |  | (1,495 | ) |  |  | 3.03 |
Options cancelled |  |  | 123,679 |  |  |  | (123,679 | ) |  |  | (698 | ) |  |  | 5.64 |
Options expired |  |  | (57,628 | ) |  |  | — |  |  |  | — |  |  |  | — |
FY 2013: Balances, December 28, 2013 |  |  | 476,545 |  |  |  | 1,102,842 |  |  | $ | 4,356 |  |  | $ | 3.97 |
Stock Options Outstanding and Exercisable | The following table summarizes information with respect to stock options outstanding and exercisable at December 28, 2013:
|  | Options Outstanding |  |  | Options Vested and Exercisable |
Range of Exercise Prices |  | Number of Shares Outstanding at December 28, 2013 |  |  | Weighted Average Remaining Contractual Life (years) |  |  | Weighted Average Exercise Price |  |  | Number of Shares Exercisable at December 28, 2013 |  |  | Weighted Average Exercise Price |
$0.90 - $2.34 |  |  | 124,474 |  |  |  | 2.00 |  |  | $ | 1.44 |  |  |  | 124,474 |  |  | $ | 1.44 |
$2.35 - $2.78 |  |  | 117,142 |  |  |  | 0.90 |  |  | $ | 2.49 |  |  |  | 117,142 |  |  | $ | 2.49 |
$2.93 - $3.60 |  |  | 127,694 |  |  |  | 3.63 |  |  | $ | 3.42 |  |  |  | 88,432 |  |  | $ | 3.36 |
$3.72 - $3.75 |  |  | 65,833 |  |  |  | 4.78 |  |  | $ | 3.72 |  |  |  | 39,000 |  |  | $ | 3.72 |
$3.86 - $3.86 |  |  | 171,875 |  |  |  | 5.96 |  |  | $ | 3.86 |  |  |  | 26,573 |  |  | $ | 3.86 |
$3.89 - $4.11 |  |  | 111,325 |  |  |  | 4.60 |  |  | $ | 3.98 |  |  |  | 62,498 |  |  | $ | 3.97 |
$4.12 - $4.74 |  |  | 126,775 |  |  |  | 4.05 |  |  | $ | 4.46 |  |  |  | 78,546 |  |  | $ | 4.32 |
$4.86 - $5.92 |  |  | 173,091 |  |  |  | 3.52 |  |  | $ | 5.63 |  |  |  | 104,367 |  |  | $ | 5.45 |
$6.00 - $9.06 |  |  | 81,633 |  |  |  | 2.22 |  |  | $ | 6.74 |  |  |  | 60,492 |  |  | $ | 6.90 |
$10.19 - $10.19 |  |  | 3,000 |  |  |  | 6.93 |  |  | $ | 10.19 |  |  |  | — |  |  | $ | 0.00 |
$0.90 - $10.19 |  |  | 1,102,842 |  |  |  | 3.62 |  |  | $ | 3.97 |  |  |  | 701,524 |  |  | $ | 3.69 |
Weighted Average Assumptions for Fair Value of Options Granted | The determination of the fair value of options granted by the Company is computed using the Black-Scholes option pricing model with the following weighted average assumptions:
|  | Employee Stock Option Plan
|  | FY 2013 |  | FY 2012 |  | FY 2011
Average risk free interest rate |  | 1.12% |  | 0.68% |  | 0.98%
Expected life (in years) |  | 4.50 years |  | 4.55 years |  | 4.70 years
Dividend yield |  | — |  | — |  | —
Average volatility |  | 71.5% |  | 89.2% |  | 92.2%
Stock-Based Compensation Expense | The following table shows stock-based compensation expense by functional line item in the consolidated statements of operations for 2013, 2012 and 2011 (in thousands):
|  | FY 2013 Year Ended |  |  | FY 2012 Year Ended |  |  | FY 2011 Year Ended |
|  | December 28, 2013 |  |  | December 29, 2012 |  |  | December 31, 2011 |
Cost of revenues |  | $ | 108 |  |  | $ | 63 |  |  | $ | 60 |
Research and development |  |  | 71 |  |  |  | 77 |  |  |  | 76 |
Sales and marketing |  |  | 113 |  |  |  | 105 |  |  |  | 112 |
General and administrative |  |  | 397 |  |  |  | 143 |  |  |  | 230 |
Total stock-based compensation expense – continuing operations |  |  | 689 |  |  |  | 388 |  |  |  | 478 |
Total stock-based compensation expense – discontinued operations |  |  | — |  |  |  | 8 |  |  |  | 66 |
Total stock-based compensation expense |  | $ | 689 |  |  | $ | 396 |  |  | $ | 544 |
Stock Options Outstanding, Exercisable and Expected to Vest | Information regarding stock options outstanding, exercisable and expected to vest as of December 28, 2013 is summarized below:
|  |  |  |  |  |  |  | Weighted Average |  |  | Aggregate |
|  | Number of |  |  | Weighted Average |  |  | Remaining Contractual |  |  | Intrinsic Value |
|  | Shares |  |  | Exercise Price |  |  | Life (years) |  |  | (thousands) |
Options outstanding |  |  | 1,102,842 |  |  | $ | 3.97 |  |  |  | 3.62 |  |  | $ | 6,287 |
Options vested and expected to vest |  |  | 1,042,611 |  |  | $ | 3.93 |  |  |  | 3.48 |  |  | $ | 5,981 |
Options exercisable |  |  | 701,524 |  |  | $ | 3.69 |  |  |  | 2.33 |  |  | $ | 4,196 |
Restricted Stock Units Outstanding, Vested and Expected to Vest | Information regarding the restricted stock units outstanding, vested and expected to vest as of December 28, 2013 is summarized below:
|  | Number of Shares |  |  | Weighted Average Remaining Contractual Life (years) |  |  | Aggregate Intrinsic Value (thousands) |
Restricted stock units outstanding |  |  | 269,259 |  |  |  | 0.86 |  |  | $ | 2,604 |
Restricted stock units vested and expected to vest |  |  | 243,471 |  |  |  | 0.85 |  |  | $ | 2,354 |
Restricted Stock Units and Awards | Information regarding the restricted stock units and awards activity during the year ended December 28, 2013, December 29, 2012 and December 31, 2011 is summarized below:
|  | Number of Shares |  |  | Weighted Average Grant Date Fair Value |
Outstanding at January 1, 2011 |  |  | — |  |  | $ | — |
Restricted stock units granted |  |  | 90,189 |  |  | $ | 3.49 |
Outstanding at December 31, 2011 |  |  | 90,189 |  |  | $ | 3.49 |
Restricted stock units granted |  |  | 55,999 |  |  | $ | 3.85 |
Restricted stock units released |  |  | (15,189 | ) |  | $ | 3.95 |
Restricted stock units forfeited |  |  | (75,000 | ) |  | $ | 3.40 |
Outstanding at December 29, 2012 |  |  | 55,999 |  |  | $ | 3.85 |
Restricted stock units granted |  |  | 230,509 |  |  | $ | 4.51 |
Restricted stock units released |  |  | (17,249 | ) |  | $ | 3.77 |
Outstanding at December 28, 2013 |  |  | 269,259 |  |  | $ | 4.42 |
Information regarding the restricted stock units and awards activity during the year ended December 28, 2013, December 29, 2012 and December 31, 2011 is summarized below:
|  | Number of Shares |  |  | Weighted Average Grant Date Fair Value |
Outstanding at January 1, 2011 |  |  | — |  |  | $ | — |
Restricted stock awards granted |  |  | 10,126 |  |  | $ | 3.95 |
Outstanding at December 31, 2011 |  |  | 10,126 |  |  | $ | 3.95 |
Restricted stock awards granted |  |  | 10,666 |  |  | $ | 3.75 |
Restricted stock awards released |  |  | (10,126 | ) |  | $ | 3.95 |
Outstanding at December 29, 2012 |  |  | 10,666 |  |  | $ | 3.75 |
Restricted stock awards granted |  |  | 3,503 |  |  | $ | 5.71 |
Restricted stock awards released |  |  | (10,666 | ) |  | $ | 3.75 |
Outstanding at December 28, 2013 |  |  | 3,503 |  |  | $ | 5.71 |

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