STOCK-BASED COMPENSATION (Valuation Assumptions) (Details) - $ / shares |
6 Months Ended | |
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Jul. 01, 2018 |
Jul. 02, 2017 |
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| Stock-Based Compensation [Abstract] | ||
| Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value | $ 3.73 | $ 2.55 |
| Fair Value Assumptions Expected Term | 6 years 2 months 12 days | 5 years |
| Expected dividend | 0.00% | 0.00% |
| Expected stock volatility | 45.94% | 60.47% |
| Risk-free interest rate | 2.90% | 2.20% |
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- Definition Performance Shares, Stock Options, Other Forms Of Compensation And Common Share Repurchaces [Abstract] No definition available.
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- Definition Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Risk-free interest rate assumption used in valuing an instrument. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Weighted average expected volatility of stock price. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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