EQUITY - Long-Term Incentive Plan (Details Textual) - 2019 Long-Term Incentive Plan [Member] - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jan. 31, 2019	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Stockholders Equity [Line Items]
Stock options granted	370,000
Units vesting upon employees being in good standing, Percentages	50.00%
Units vesting upon average share price, Percentages	50.00%
Stock based compensation expenses		$ 71	$ 72	$ 213	$ 161