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Stockholders' Equity (Details 1) (USD $) | 12 Months Ended
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Dec. 29, 2012
Range One [Member] |
Stock options outstanding and exercisable |
Range of Exercise Prices, Lower Range Limit | $ 0.82
Range of Exercise Prices, Upper Range Limit | $ 1.00
Options Outstanding, Number of Shares | 159,645
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 2 years 8 months 16 days
Options Outstanding, Weighted Average Exercise Price | $ 0.90
Options Vested and Exercisable, Number of Shares Exercisable | 158,855
Options Vested and Exercisable, Weighted Average Exercise Price | $ 0.90
Range Two [Member] |
Stock options outstanding and exercisable |
Range of Exercise Prices, Lower Range Limit | $ 2.24
Range of Exercise Prices, Upper Range Limit | $ 2.38
Options Outstanding, Number of Shares | 166,531
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 2 years 1 month 28 days
Options Outstanding, Weighted Average Exercise Price | $ 2.33
Options Vested and Exercisable, Number of Shares Exercisable | 161,232
Options Vested and Exercisable, Weighted Average Exercise Price | $ 2.33
Range Three [Member] |
Stock options outstanding and exercisable |
Range of Exercise Prices, Lower Range Limit | $ 2.41
Range of Exercise Prices, Upper Range Limit | $ 2.78
Options Outstanding, Number of Shares | 185,237
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 2 years 22 days
Options Outstanding, Weighted Average Exercise Price | $ 2.56
Options Vested and Exercisable, Number of Shares Exercisable | 185,237
Options Vested and Exercisable, Weighted Average Exercise Price | $ 2.56
Range Four [Member] |
Stock options outstanding and exercisable |
Range of Exercise Prices, Lower Range Limit | $ 2.93
Range of Exercise Prices, Upper Range Limit | $ 3.52
Options Outstanding, Number of Shares | 163,651
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 2 years 5 months 9 days
Options Outstanding, Weighted Average Exercise Price | $ 3.26
Options Vested and Exercisable, Number of Shares Exercisable | 128,378
Options Vested and Exercisable, Weighted Average Exercise Price | $ 3.24
Range Five [Member] |
Stock options outstanding and exercisable |
Range of Exercise Prices, Lower Range Limit | $ 3.53
Range of Exercise Prices, Upper Range Limit | $ 3.75
Options Outstanding, Number of Shares | 147,000
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 5 years 4 months 6 days
Options Outstanding, Weighted Average Exercise Price | $ 3.66
Options Vested and Exercisable, Number of Shares Exercisable | 55,031
Options Vested and Exercisable, Weighted Average Exercise Price | $ 3.64
Range Six [Member] |
Stock options outstanding and exercisable |
Range of Exercise Prices, Lower Range Limit | $ 3.86
Range of Exercise Prices, Upper Range Limit | $ 3.86
Options Outstanding, Number of Shares | 188,500
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 6 years 11 months 16 days
Options Outstanding, Weighted Average Exercise Price | $ 3.86
Options Vested and Exercisable, Number of Shares Exercisable | 0
Options Vested and Exercisable, Weighted Average Exercise Price | $ 0.00
Range Seven [Member] |
Stock options outstanding and exercisable |
Range of Exercise Prices, Lower Range Limit | $ 3.89
Range of Exercise Prices, Upper Range Limit | $ 4.31
Options Outstanding, Number of Shares | 226,073
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 4 years 11 months 23 days
Options Outstanding, Weighted Average Exercise Price | $ 4.11
Options Vested and Exercisable, Number of Shares Exercisable | 114,659
Options Vested and Exercisable, Weighted Average Exercise Price | $ 4.16
Range Eight [Member] |
Stock options outstanding and exercisable |
Range of Exercise Prices, Lower Range Limit | $ 4.43
Range of Exercise Prices, Upper Range Limit | $ 5.56
Options Outstanding, Number of Shares | 221,419
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 1 year 4 months 28 days
Options Outstanding, Weighted Average Exercise Price | $ 5.20
Options Vested and Exercisable, Number of Shares Exercisable | 221,419
Options Vested and Exercisable, Weighted Average Exercise Price | $ 5.20
Range Nine [Member] |
Stock options outstanding and exercisable |
Range of Exercise Prices, Lower Range Limit | $ 5.69
Range of Exercise Prices, Upper Range Limit | $ 9.79
Options Outstanding, Number of Shares | 108,487
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 1 year 2 months 9 days
Options Outstanding, Weighted Average Exercise Price | $ 7.33
Options Vested and Exercisable, Number of Shares Exercisable | 108,487
Options Vested and Exercisable, Weighted Average Exercise Price | $ 7.33
Range Ten [Member] |
Stock options outstanding and exercisable |
Range of Exercise Prices, Lower Range Limit | $ 10.06
Range of Exercise Prices, Upper Range Limit | $ 10.06
Options Outstanding, Number of Shares | 4,000
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 1 year 2 months 1 day
Options Outstanding, Weighted Average Exercise Price | $ 10.06
Options Vested and Exercisable, Number of Shares Exercisable | 4,000
Options Vested and Exercisable, Weighted Average Exercise Price | $ 10.06
Range Eleven [Member] |
Stock options outstanding and exercisable |
Range of Exercise Prices, Lower Range Limit | $ 0.82
Range of Exercise Prices, Upper Range Limit | $ 10.06
Options Outstanding, Number of Shares | 1,570,543
Options Outstanding, Weighted Average Remaining Contractual Life (Years) | 3 years 4 months 2 days
Options Outstanding, Weighted Average Exercise Price | $ 3.63
Options Vested and Exercisable, Number of Shares Exercisable | 1,137,298
Options Vested and Exercisable, Weighted Average Exercise Price | $ 3.58

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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(c) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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