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EQUITY AND LONG-TERM INVESTMENTS AND FAIR VALUE MEASUREMENTS - Equity Investment in InCarda (Details) |  |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 15, 2022 USD ($) $ / shares shares | Mar. 09, 2022 USD ($) | Sep. 30, 2020 USD ($) shares | Dec. 31, 2022 USD ($) Director $ / shares | Dec. 31, 2021 USD ($) | Mar. 30, 2022
InCarda |  |  |  |  |  |
Equity Investment |  |  |  |  |  |
Number of Investee's Board members currently representing the Company | Director |  |  |  | 1 |  |
Number of the Investee's Board members | Director |  |  |  | 8 |  |
Equity investment ownership percentage |  |  |  | 9.00% | 13.00% |
Unrealized loss from fair value changes in equity investments |  |  |  | $ 8,700,000 | $ 700,000 |
InCarda Convertible Note |  |  |  |  |  |
Equity Investment |  |  |  |  |  |
Debt Instrument, annual interest rate |  |  |  |  |  | 6.00%
Debt instrument principal amount percentage |  |  |  | 100.00% |  |
InCarda Convertible Note | Qualified Financing |  |  |  |  |  |
Equity Investment |  |  |  |  |  |
Gross Proceeds from sale of equity |  | $ 10,000,000.0 |  |  |  |
Series C preferred stock and warrants | InCarda |  |  |  |  |  |
Equity Investment |  |  |  |  |  |
Amount of securities purchase agreement |  |  | $ 15,800,000 |  |  |
Incarda 2020 Warrants [Member] | InCarda |  |  |  |  |  |
Equity Investment |  |  |  |  |  |
Maximum number of additional shares into which warrants may be converted under the securities purchase agreement | shares |  |  | 5,117,358 |  |  |
Equity and long-term investments at fair value |  |  |  |  | 400,000 |
Exercise price of warrants | $ / shares |  |  |  | $ 0.7328 |  |
Extended expiration date |  |  |  | Mar. 31, 2023 |  |
Convertible note and warrants | InCarda |  |  |  |  |  |
Equity Investment |  |  |  |  |  |
Amount of securities purchase agreement |  | $ 700,000 |  |  |  |
Common stock | InCarda |  |  |  |  |  |
Equity Investment |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued | shares | 4,093,886 |  |  |  |  |
Series A1 preferred stock | InCarda |  |  |  |  |  |
Equity Investment |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued | shares | 37,350 |  |  |  |  |
Series D 1 Preferred Stock | InCarda |  |  |  |  |  |
Equity Investment |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued | shares | 8,771,780 |  |  |  |  |
Series D 2 Preferred Stock | InCarda |  |  |  |  |  |
Equity Investment |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued | shares | 3,369,802 |  |  |  |  |
Series D1 Warrant | InCarda |  |  |  |  |  |
Equity Investment |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued | shares | 2,490,033 |  |  |  |  |
Exercise price of warrants | $ / shares | $ 0.20 |  |  |  |  |
Series C preferred stock | InCarda |  |  |  |  |  |
Equity Investment |  |  |  |  |  |
Number of shares to be purchased under the securities purchase agreement | shares |  |  | 20,469,432 |  |  |
Debt Conversion, Converted Instrument, Shares Issued | shares | 5,117,358 |  |  |  |  |
Transaction cost |  |  | $ 800,000 |  |  |
Equity and long-term investments at fair value |  |  |  | $ 6,800,000 | 15,800,000 |
Impairment of equity investments |  |  |  | 9,000,000.0 | $ 0 |
Exercise price of warrants | $ / shares | $ 0.73 |  |  |  |  |
Series C Warrants and Series D Warrants | InCarda |  |  |  |  |  |
Equity Investment |  |  |  |  |  |
Equity and long-term investments at fair value |  |  |  | 600,000 |  |
Series D Preferred Stock | InCarda |  |  |  |  |  |
Equity Investment |  |  |  |  |  |
Payments to acquire equity securities | $ 2,300,000 |  |  |  |  |
Series D 1 And D 2 Preferred Stock And Common Stock | InCarda |  |  |  |  |  |
Equity Investment |  |  |  |  |  |
Equity and long-term investments at fair value |  |  |  | $ 3,200,000 |  |
Significant Unobservable Inputs, Level 3 | Backsolve Valuation | InCarda |  |  |  |  |  |
Equity Investment |  |  |  |  |  |
Expected Holding Period |  |  |  | 2 years |  |
Risk Free Interest Rate |  |  |  | 3.20% |  |
Dividend Yield |  |  |  | 0.00% |  |
Estimated volatility |  |  |  | 122.00% |  |

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