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FAIR VALUE ACCOUNTING (Tables) | 9 Months Ended
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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, 2022 | Level 1 |  | Level 2 |  | Level 3 |  | Total
Cash equivalents(1) | $ | — |  |  | $ | 30,137 |  |  | $ | — |  |  | $ | 30,137 |
Investments accounted for at fair value | 22,618 |  |  | 247 |  |  | — |  |  | 22,865 |
Marketable equity securities | 329 |  |  | 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, 2021 | Level 1 |  | Level 2 |  | Level 3 |  | Total
Investments at fair value | 37,407 |  |  | 1,131 |  |  | — |  |  | 38,538 |
Marketable equity securities | 494 |  |  | — |  |  | — |  |  | 494 |
| $ | 37,901 |  |  | $ | 1,131 |  |  | $ | — |  |  | $ | 39,032 |

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- Definition Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19279-110258 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2C -URI https://asc.fasb.org/extlink&oid=126976982&loc=SL7498348-110258 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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