Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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STOCK-BASED COMPENSATION (Details) - USD ($) $ in Thousands	12 Months Ended
STOCK-BASED COMPENSATION (Details) - USD ($) $ in Thousands	Jan. 03, 2021	Dec. 29, 2019	Jun. 28, 2020	May 24, 2020
Stock-based compensation
Shares authorized for issuance			1,500,000	1,000,000
Shares available for grant	169,440
Unrecognized stock-based compensation cost	$ 544
Unrecognized stock-based compensation costs, expected period of recognition	3 years
Stock-based compensation expense	$ 886	$ 463
Stock Options
Stock-based compensation
Stock-based compensation expense	457	266
Restricted Stock
Stock-based compensation
Stock-based compensation expense	$ 429	$ 197
Employees and Directors \| Stock Options
Stock-based compensation
Expiration period	10 years
Employees and Directors \| Minimum \| Stock Options
Stock-based compensation
Vesting period	2 years
Employees and Directors \| Maximum \| Stock Options
Stock-based compensation
Vesting period	5 years