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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Weighted Average Number of Shares) (Details) - shares | 3 Months Ended | 12 Months Ended
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Dec. 30, 2018 | Sep. 30, 2018 | Jul. 01, 2018 | Apr. 01, 2018 | Dec. 31, 2017 | Sep. 24, 2017 | Jun. 25, 2017 | Mar. 26, 2017 | Dec. 30, 2018 | Dec. 31, 2017 | Dec. 25, 2016
Schedule of Weighted Average Number of Shares, Diluted [Line Items] |  |  |  |  |  |  |  |  |  |  |
Weighted-average number of basic common shares outstanding | 10,184,652 | 10,109,791 | 9,235,353 | 8,761,292 | 8,759,376 | 8,759,376 | 8,746,100 | 8,668,955 | 9,577,498 | 8,733,941 | 8,107,637
Weighted-average number of diluted common shares outstanding | 10,365,117 | 10,342,559 | 9,538,545 | 9,087,016 | 8,759,376 | 9,077,147 | 9,050,596 | 8,924,419 | 9,808,080 | 9,038,187 | 8,399,883
Stock options and restricted stock |  |  |  |  |  |  |  |  |  |  |
Schedule of Weighted Average Number of Shares, Diluted [Line Items] |  |  |  |  |  |  |  |  |  |  |
Effect of dilutive securities (in shares) |  |  |  |  |  |  |  |  | 186,995 | 268,765 | 258,617
Warrant |  |  |  |  |  |  |  |  |  |  |
Schedule of Weighted Average Number of Shares, Diluted [Line Items] |  |  |  |  |  |  |  |  |  |  |
Effect of dilutive securities (in shares) |  |  |  |  |  |  |  |  | 43,587 | 35,481 | 33,629

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