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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Earnings Per Share (Details) - shares	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Schedule of Weighted Average Number of Shares, Diluted [Line Items]
Basic (shares)	10,308,445	10,229,462
Effect of dilutive securities:
Weighted-average number of diluted common shares outstanding	10,382,999	10,404,355
Antidilutive securities excluded from computation of earnings per share, amount	423,150	243,750
Stock options and restricted stock
Effect of dilutive securities:
Stock options and restricted stock	61,859	127,104
Antidilutive securities excluded from computation of earnings per share, amount	423,150	243,750
Warrant
Effect of dilutive securities:
Warrants	12,695	47,789

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Schedule of Weighted Average Number of Shares, Diluted [Line Items]

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options and warrants using the treasury stock method.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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