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Balance Sheet Components - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) | Mar. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Balance Sheet Components |  |  |
Prepaid operating expenses | $ 236,470 | $ 225,756 | $ 319,996
Rent deposit | 61,412 | 55,981 | 100,425
VAT receivable associated with SAIT | 82,423 | 71,742 | 68,798
Tax credit receivable (short-term) | 66,135 | 218,239 | 75,106
Miscellaneous receivable | 15,804 | 8,368 | 332,277
Prepaid expenses and other current assets | $ 462,244 | $ 580,086 | $ 996,602

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