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Cash, Cash Equivalents and Restricted Cash (Tables) | 3 Months Ended
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Mar. 31, 2022
Cash and Cash Equivalents [Abstract] |
Schedule of Cash, Cash Equivalents, and Restricted Cash | Cash, cash equivalents, and restricted cash balances were as follows (in thousands):
|  | March 31, 2022 |  |  | December 31, 2021 |
Cash and cash equivalents |  | $ | 16,340 |  |  | $ | 22,802 |
Restricted balance for loan agreement |  |  | 4,000 |  |  | $ | 4,000 |
Letters of credit |  |  | 101 |  |  |  | 101 |
Security for credit cards |  |  | 50 |  |  |  | 50 |
Total cash, cash equivalents and restricted cash shown in the statements of cash flows |  | $ | 20,491 |  |  | $ | 26,953 |

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