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STOCKHOLDERS' EQUITY (At The Market Offering Agreement) (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended	6 Months Ended
	Jul. 01, 2021	Apr. 02, 2021	Jun. 30, 2021	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020	Apr. 13, 2020
Class of Stock [Line Items]
Common stock, par value			$ 0.01	$ 0.01		$ 0.01
Proceeds from issuance of common stock				$ 16,207	$ 2,607
AGP | At The Market Offering Agreement
Class of Stock [Line Items]
Common stock, par value		$ 0.01
Aggregate sales proceeds of common stock		$ 22,000
Aggregate authorized offering price							$ 50,000
Percentage of cash fee		3.00%
Proceeds from issuance of common stock			$ 14,900	$ 14,900
Shares issued (in shares)	0		4,501,000	4,501,000

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The cash fee expressed as a percentage of aggregate gross proceeds from the sale of the shares of the company under the agreement.

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The maximum amount of aggregate sale proceeds of common stock under the agreement.

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