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SHARE-BASED COMPENSATION (Details Textual) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended			6 Months Ended
	Sep. 26, 2021	Jun. 27, 2021	Jun. 28, 2020	Jun. 27, 2021	Jun. 28, 2020	Dec. 27, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options converted				600
Forecast
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares that will be issued under ESPP	17,000
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense		$ 0.1		$ 0.2	$ 0.3
Unamortized stock compensation expense		0.6		$ 0.6
Unamortized stock compensation expense, recognition period				2 years 1 month 6 days
Shares issued in period				213
Options converted				600
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense		0.1	$ 0.1	$ 0.2	$ 0.1
Unamortized stock compensation expense		$ 0.3		$ 0.3
Unamortized stock compensation expense, recognition period				2 years 4 months 24 days
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Exercised				(3,684)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value				$ 13.22
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 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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