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Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Oct. 01, 2016 | Jul. 02, 2016 | Apr. 02, 2016 | Jan. 02, 2016 | Oct. 03, 2015 | Jul. 04, 2015 | Apr. 04, 2015 | Dec. 31, 2016 | Jan. 02, 2016 | Jan. 03, 2015
Net income available to common shareholders |  |  |  |  |  |  |  |  |  |  |
Net income, as reported | $ 2,058 | $ 3,193 | $ 5,215 | $ 2,423 | $ (1,307) | $ 2,860 | $ 3,325 | $ 2,779 | $ 12,888 | $ 7,657 | $ 13,638
Less: net income attributable to participating shares |  |  |  |  |  |  |  |  | 95 | 59 | 20
Net income available to common shareholders |  |  |  |  |  |  |  |  | $ 12,793 | $ 7,598 | $ 13,618
Reconciliation of basic to diluted weighted average shares of common stock outstanding |  |  |  |  |  |  |  |  |  |  |
Basic weighted average shares outstanding | 8,269,000 | 8,177,000 | 8,695,000 | 8,871,000 | 8,876,000 | 8,940,000 | 9,034,000 | 9,190,000 | 8,503,000 | 9,010,000 | 9,747,000
Stock options, restricted stock shares and restricted stock units |  |  |  |  |  |  |  |  | 98,000 | 185,000 | 150,000
Diluted weighted average shares outstanding | 8,443,000 | 8,309,000 | 8,779,000 | 8,927,000 | 8,876,000 | 9,025,000 | 9,253,000 | 9,403,000 | 8,601,000 | 9,195,000 | 9,897,000
Basic (in dollars per share) | $ 0.25 | $ 0.39 | $ 0.60 | $ 0.27 | $ (0.15) | $ 0.32 | $ 0.37 | $ 0.30 | $ 1.50 | $ 0.84 | $ 1.40
Diluted (in dollars per share) | $ 0.24 | $ 0.38 | $ 0.59 | $ 0.27 | $ (0.15) | $ 0.31 | $ 0.36 | $ 0.30 | $ 1.49 | $ 0.83 | $ 1.38
Calculation of common stock equivalents for purposes of computing diluted weighted average shares outstanding |  |  |  |  |  |  |  |  |  |  |
Anti-dilutive securities excluded from EPS computation (in shares) |  |  |  |  |  |  |  |  | 581,546 | 522,593 | 764,748

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