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Stockholders' Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 28, 2013 | Dec. 29, 2012 | Dec. 31, 2011
Activity in stock option plan |  |  |
Shares Available for Grant, Beginning Balance | 741,978 | 505,221 | 760,137
Shares Available for Grant, Additional shares reserved | 52,128 | 391,166 | 163,378
Shares Available for Grant, Options granted | (149,600) | (335,050) | (319,900)
Shares Available for Grant, Restricted stock granted | (234,012) | (66,665) | (100,315)
Shares Available for Grant, Options exercised |  |  |
Shares Available for Grant, Options cancelled | 123,679 | 356,277 | 72,274
Shares Available for Grant, Options expired | (57,628) | (108,971) | (70,353)
Shares Available for Grant, Ending Balance | 476,545 | 741,978 | 505,221
Outstanding, Number of Shares, Beginning Balance | 1,570,543 | 1,766,401 | 1,618,066
Number of Shares, Additional shares reserved |  |  |
Number of Shares, Options granted | 149,600 | 335,050 | 319,900
Number of Shares, Options exercised | (493,622) | (174,631) | (99,291)
Number of Shares, Options cancelled | (123,679) | (356,277) | (72,274)
Number of Shares, Options expired |  |  |
Number of Shares, Ending Balance | 1,102,842 | 1,570,543 | 1,766,401
Aggregate Price, Beginning Balance | $ 5,698 | $ 6,380 | $ 5,906
Aggregate Price, Additional shares reserved |  |  |
Aggregate Price, Options granted | 851 | 1,313 | 1,148
Aggregate Price, Options exercised | (1,495) | (445) | (321)
Aggregate Price, Options cancelled | (698) | (1,550) | (353)
Aggregate Price, Options expired |  |  |
Aggregate Price, Ending Balance | $ 4,356 | $ 5,698 | $ 6,380
Weighted Average Exercise Price, Beginning Balance | $ 3.63 | $ 3.61 | $ 3.65
Weighted Average Exercise Price, Additional shares reserved |  |  |
Weighted Average Exercise Price, Options granted | $ 5.69 | $ 3.92 | $ 3.59
Weighted Average Exercise Price, Options exercised | $ 3.03 | $ 2.55 | $ 3.24
Weighted Average Exercise Price, Options cancelled | $ 5.64 | $ 4.35 | $ 4.88
Weighted Average Exercise Price, Options expired |  |  |
Weighted Average Exercise Price, Ending Balance | $ 3.97 | $ 3.63 | $ 3.61

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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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