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INVESTMENT AT FAIR VALUE (Tables) | 12 Months Ended
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Dec. 31, 2021
Schedule of Investments [Abstract] |
Gain (Loss) on Securities | The consolidated statements of operations reflected the following net realized and unrealized gains:
| Years Ended December 31,
| 2021 |  | 2020
| (In thousands)
Change in fair value of investment, warrants | $ | (2,752) |  |  | $ | 1,996 |
Change in fair value of investment, common stock | — |  |  | 3,478 |
Gain on sale of investment, warrants | 3,591 |  |  | 11,503 |
Loss on sale of investment, common stock | — |  |  | (3,316) |
Net realized and unrealized gain | $ | 839 |  |  | $ | 13,661 |

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