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SHARE-BASED COMPENSATION (Details Textual) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 26, 2021	Sep. 27, 2020	Sep. 26, 2021	Sep. 27, 2020	Dec. 27, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options converted			600
Issuance of ESPP Shares (shares)	14,758		14,758
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	$ 0.2	$ 0.1	$ 0.5	$ 0.4
Unamortized stock compensation expense	0.9		$ 0.9
Unamortized stock compensation expense, recognition period			2 years 8 months 12 days
Shares issued in period			213
Options converted			1,000
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense			$ 0.4	$ 0.2
Unamortized stock compensation expense	$ 0.6		$ 0.6
Unamortized stock compensation expense, recognition period			2 years 7 months 6 days
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Exercised			(26,048)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value			$ 17.51
Warrant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments, nonvested, number of shares					0

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Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Nonvested, Number of Shares

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The number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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