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STOCKHOLDERS' EQUITY AND STOCK-BASED COMPENSATION (Details) - USD ($) |  |  | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Apr. 10, 2019 | Mar. 15, 2019 | Sep. 28, 2019 | Dec. 30, 2017 | Dec. 29, 2018
Class of Warrant or Right [Line Items] |  |  |  |  |
Sale of registered stock (in shares) | 700,000 | 7,272,727 |  |  |
Proceeds from sale of equity, gross | $ 800,000 | $ 8,000,000.0 |  |  |
Shares issued (in usd per share) | $ 1.10 | $ 1.10 |  |  |
Underwriting Discounts and Offering Expenses from Sale of Equity | $ 100,000 | $ 700,000 |  |  |
Noncontrolling interest ownership percentage | 0.80% | 8.90% |  |  |
Weighted average grant date fair value (in usd per shares) |  |  |  |  | $ 1,700,000
Restricted Stock |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |
Unrecognized compensation cost related to nonvested stock awards |  |  | $ 1,300,000 |  |
Unrecognized compensation cost related to nonvested stock awards, period of recognition (in years) |  |  | 2 years |  |
Share-based Compensation Award, Tranche One |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |
Nonvested common stock awards employment obligations (in years) |  |  | 1 year |  |
Share-based Compensation Award, Tranche One | Restricted Stock |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |
Equity instruments granted in period (in shares) |  |  |  | 640,000 |
Award vesting period |  |  |  | 20 days |
Vesting market price (in usd per share) |  |  |  | $ 5.25 |
Share-based Compensation Award, Tranche Two |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |
Nonvested common stock awards employment obligations (in years) |  |  | 2 years |  |
Share-based Compensation Award, Tranche Two | Restricted Stock |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |
Equity instruments granted in period (in shares) |  |  |  | 150,000 |
Award vesting period |  |  |  | 20 days |
Vesting market price (in usd per share) |  |  |  | $ 6.00 |
Share-based Compensation Award, Tranche Three |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |
Nonvested common stock awards employment obligations (in years) |  |  | 4 years |  |
Share-based Compensation Award, Tranche Three | Restricted Stock |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |
Equity instruments granted in period (in shares) |  |  |  | 150,000 |
Award vesting period |  |  |  | 20 days |
Vesting market price (in usd per share) |  |  |  | $ 7.00 |

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