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SHAREHOLDERS EQUITY (Tables) | 12 Months Ended
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Dec. 30, 2022
SHAREHOLDERS' EQUITY |
Summary of stock option activity | A summary of option activity under the 2006 Plan and 2008 Plan as of December 30, 2022 and changes during the fiscal years ended December 30, 2022, December 31, 2021 and January 1, 2021 is presented below. The intrinsic value of the fully-vested options is $2.1 million based on the Company’s closing stock price of $17.85 and the average exercise price of outstanding options on December 30, 2022.
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted- |
​ | ​ | ​ | ​ | Weighted- | ​ | Average |
​ | ​ | ​ | ​ | Average | ​ | Remaining |
​ | ​ | ​ | ​ | Exercise | ​ | Contractual |
​ |  | Options |  | Price |  | Term |
​ | ​ | (in thousands) | ​ | ​ | ​ | ​ | (in years) | ​
Outstanding at December 31, 2021 |  | 849 | ​ | $ | 19.89 |  | 4.68 | ​
Granted |  | — | ​ |  | — |  | — | ​
Exercised |  | (33) | ​ |  | 8.12 |  | — | ​
Forfeited or expired |  | — | ​ |  | — |  | — | ​
Outstanding at December 30, 2022 |  | 816 | ​ | $ | 20.38 |  | 3.68 | ​
Vested and expected to vest at December 30, 2022 |  | 816 | ​ | $ | 20.38 |  | 3.68 | ​
Exercisable at December 30, 2022 |  | 816 | ​ | $ | 20.38 |  | 3.68 | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted- | ​
​ | ​ | ​ | ​ | Weighted- | ​ | Average |
​ | ​ | ​ | ​ | Average | ​ | Remaining |
​ | ​ | ​ | ​ | Exercise | ​ | Contractual |
​ |  | Options |  | Price |  | Term |
​ | ​ | (in thousands) | ​ | ​ | ​ | ​ | (in years) | ​
Outstanding at January 1, 2021 |  | 1,003 | ​ | $ | 18.86 |  | 5.43 | ​
Granted |  | — | ​ |  | — |  | — | ​
Exercised |  | (150) | ​ |  | 12.86 |  | — | ​
Forfeited or expired |  | (4) | ​ |  | 24.33 |  | — | ​
Outstanding at December 31, 2021 |  | 849 | ​ | $ | 19.89 |  | 4.68 | ​
Vested and expected to vest at December 31, 2021 |  | 849 | ​ | $ | 19.89 |  | 4.68 | ​
Exercisable at December 31, 2021 |  | 849 | ​ | $ | 19.89 |  | 4.68 | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted- |
​ | ​ | ​ | ​ | Weighted- | ​ | Average |
​ | ​ | ​ | ​ | Average | ​ | Remaining |
​ | ​ | ​ | ​ | Exercise | ​ | Contractual |
​ |  | Options |  | Price |  | Term |
​ | ​ | (in thousands) | ​ | ​ | ​ | ​ | (in years) | ​
Outstanding at December 27, 2019 |  | 1,124 | ​ | $ | 17.80 |  | 6.06 | ​
Granted |  | — | ​ |  | — |  | — | ​
Exercised |  | (119) | ​ |  | 9.12 |  | — | ​
Forfeited or expired |  | (2) | ​ |  | 2.71 |  | — | ​
Outstanding at January 1, 2021 |  | 1,003 | ​ | $ | 18.86 |  | 5.43 | ​
Vested and expected to vest at January 1, 2021 |  | 1,003 | ​ | $ | 18.86 |  | 5.43 | ​
Exercisable at January 1, 2021 |  | 952 | ​ | $ | 18.16 |  | 5.31 | ​
​ A summary of the status of the Company’s nonvested options and changes in nonvested options is presented below:
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted- |
​ | ​ | ​ | ​ | Average |
​ | ​ | ​ | ​ | Grant-Date |
​ |  | Options |  | Fair Value |
​ | ​ | (in thousands) | ​ | ​ | ​ | ​
Nonvested at December 31, 2021 |  | — | ​ | $ | — | ​
Granted |  | — | ​ |  | — | ​
Vested |  | — | ​ |  | — | ​
Forfeited |  | — | ​ |  | — | ​
Nonvested at December 30, 2022 |  | — | ​ |  | — | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted- | ​
​ | ​ | ​ | ​ | Average |
​ | ​ | ​ | ​ | Grant-Date |
​ |  | Options |  | Fair Value |
​ | ​ | (in thousands) | ​ | ​ | ​ | ​
Nonvested at January 1, 2021 |  | 52 | ​ | $ | 31.73 | ​
Granted |  | — | ​ |  | — | ​
Vested |  | (52) | ​ |  | 31.73 | ​
Forfeited |  | — | ​ |  | — | ​
Nonvested at December 31, 2021 |  | — | ​ |  | — | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted- | ​
​ | ​ | ​ | ​ | Average |
​ | ​ | ​ | ​ | Grant-Date |
​ |  | Options |  | Fair Value |
​ | ​ | (in thousands) | ​ | ​ | ​ | ​
Nonvested at December 27, 2019 |  | 166 | ​ | $ | 12.15 | ​
Granted |  | — | ​ |  | — | ​
Vested |  | (114) | ​ |  | 30.97 | ​
Forfeited |  | — | ​ |  | — | ​
Nonvested at January 1, 2021 |  | 52 | ​ |  | 31.73 | ​
Summary of restricted stock activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted- |
​ | ​ | ​ | ​ | Average |
​ |  | Restricted Stock |  | Grant Date Fair Value |
​ | ​ | (in thousands) | ​ | ​ | ​ | ​
Outstanding at December 31, 2021 | ​ | 110 | ​ | $ | 38.30 |
Awarded | ​ | 104 | ​ | ​ | 31.48 | ​
Vested | ​ | (74) | ​ | ​ | 36.55 | ​
Forfeited | ​ | (5) | ​ | ​ | 36.51 | ​
Outstanding at December 30, 2022 | ​ | 135 | ​ | $ | 34.07 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
Outstanding at January 1, 2021 | ​ | 128 | ​ | $ | 33.21 |
Awarded | ​ | 63 |  | ​ | 41.02 | ​
Vested | ​ | (75) |  | ​ | 32.09 | ​
Forfeited | ​ | (6) |  | ​ | 36.69 | ​
Outstanding at December 31, 2021 | ​ | 110 | ​ | $ | 38.30 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
Outstanding at December 27, 2019 | ​ | 58 | ​ | $ | 33.33 | ​
Awarded | ​ | 99 |  | ​ | 32.89 | ​
Vested | ​ | (29) |  | ​ | 32.35 | ​
Forfeited | ​ | — |  | ​ | — | ​
Outstanding at January 1, 2021 | ​ | 128 | ​ | $ | 33.21 | ​
Summary of performance-based restricted stock unit activity | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Performance-Based | ​ | Weighted-Average
​ |  | Restricted Stock Unit |  | Grant Date Fair Value
​ | ​ | (in thousands) | ​ | ​ | ​
Outstanding at December 31, 2021 | ​ | 224 | ​ | $ | 31.31
Awarded | ​ | 186 | ​ | ​ | 38.82
Released | ​ | (278) | ​ | ​ | 40.99
Forfeited | ​ | (66) | ​ | ​ | 26.61
Outstanding at December 30, 2022 | ​ | 66 | ​ | $ | 27.93
​ | ​ | ​ | ​ | ​ | ​
Outstanding at January 1, 2021 | ​ | 379 | ​ | $ | 20.68
Awarded | ​ | 282 |  | ​ | 34.84
Released | ​ | (411) |  | ​ | 29.08
Forfeited | ​ | (26) |  | ​ | 29.93
Outstanding at December 31, 2021 | ​ | 224 | ​ | $ | 31.31
​ | ​ | ​ | ​ | ​ | ​
Outstanding at December 27, 2019 | ​ | 431 | ​ | $ | 20.68
Awarded | ​ | 413 |  | ​ | 29.22
Released | ​ | (447) |  | ​ | 28.26
Forfeited | ​ | (18) |  | ​ | 28.62
Outstanding at January 1, 2021 | ​ | 379 | ​ | $ | 20.68
Summary of valuation assumptions | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2022 | ​ | ​ | 2021 | ​ | ​ | 2020 | ​
Weighted-average expected term (in years) | ​ |  | .5 | ​ | ​ |  | .5 | ​ | ​ | ​ | .5 | ​
Risk-Free interest Rate | ​ |  | 1.4 | % | ​ |  | 0.1 | % | ​ | ​ | 0.9 | %
Stock Price Volatility | ​ |  | 30.0 | % | ​ |  | 31.9 | % | ​ | ​ | 30.3 | %
Dividend yield | ​ |  | 0 | % | ​ |  | 0 | % | ​ | ​ | 0 | %
Fair Value | ​ | $ | 31.11 | ​ | ​ | $ | 40.21 | ​ | ​ | $ | 28.39 | ​

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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