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MARKETABLE SECURITIES - Schedule of Marketable Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	$ 756	$ 824
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	336	418
Gross Unrealized Gains	2	1,841
Marketable securities	422	2,247
Marketable equity securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	756	824
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	336	418
Gross Unrealized Gains	2	1,841
Marketable securities	$ 422	$ 2,247

X

- Definition

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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