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FAIR VALUE ACCOUNTING (Tables)
9 Months Ended
Sep. 30, 2022
Fair Value Disclosures [Abstract]  
Fair Value Measurements, Recurring and Nonrecurring As of September 30, 2022 and December 31, 2021, the fair values of cash, restricted cash, short-term deposits, receivables, accounts payable and accrued liabilities approximate their carrying values because of the short-term nature of these instruments.
September 30, 2022Level 1Level 2Level 3Total
Cash equivalents(1)
$— $30,137 $— $30,137 
Investments accounted for at fair value22,618 247 — 22,865 
Marketable equity securities329 42 — 371 
Marketable debt securities— 11,254 — 11,254 
$22,947 $41,680 $— $64,627 
(1) Cash equivalents are comprised of United States Treasury Bills and Government Agency Bonds, purchased within three months of their maturity date.

December 31, 2021Level 1Level 2Level 3Total
Investments at fair value37,407 1,131 — 38,538 
Marketable equity securities494 — — 494 
$37,901 $1,131 $— $39,032