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INCOME TAXES (Details 4) - USD ($) | 12 Months Ended
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Jan. 02, 2021 | Dec. 28, 2019
INCOME TAXES |  |
Balance at beginning of year | $ 2,407,382 | $ 299,722
Increase (decrease) for positions taken during the current period | (28,637) | 137,927
Increase (decrease) for positions taken during the prior period |  | 2,039,117
Increase (decrease) resulting from the expiration of the statute of limitations | (1,300,436) | (69,384)
Balance at end of year | $ 1,078,309 | $ 2,407,382

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