FAIR VALUE ACCOUNTING (Tables)

3 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

Fair Value Measurements, Recurring and Nonrecurring

March 31, 2023	Level 1		Level 2		Level 3		Total
Cash equivalents(1)	$	—	$	26,200	$	—	$	26,200
Investments accounted for at fair value	16,340		34		—		16,374
Marketable debt securities	—		59,431		—		59,431
Convertible note	—		—		59,259		59,259
Marketable equity securities	976		31		—		1,007
	$	17,316	$	85,696	$	59,259	$	162,271

(1)     Cash equivalents are comprised of United States Treasury Bills and Government Agency Bonds, purchased within three months of their maturity date.

December 31, 2022	Level 1		Level 2		Level 3		Total
Cash equivalents(1)	$	—	$	30,336	$	—	$	30,336
Investments accounted for at fair value	19,263		66		—		19,329
Marketable debt securities	—		11,125		—		11,125
Marketable equity securities	1,033		34		—		1,067
	$	20,296	$	41,561	$	—	$	61,857

(1)     Cash equivalents are comprised of United States Treasury Bills and Government Agency Bonds, purchased within three months of their maturity date.

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation

The following table is a reconciliation of the beginning and ending balance recorded for the Convertible Note classified as Level 3 in the fair value hierarchy.

Beginning balance, February 14, 2023	$	59,457
Unrealized loss included in other income (loss)	(198)
Ending balance, March 31, 2023	$	59,259

As of March 31, 2023, the difference between the fair value of the Convertible Note and the unpaid principal amount is $0.74 million.