| Dec 31,
2017 | Dec 31,
2018 | Dec 31,
2019 | Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 | Dec 31,
2023 |
|---|
| Net loss | -50,384,176 | -139,074,895 | -195 | -269 | -704 | -443 | -335 |
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| Allowance for credit loss | - | - | - | 0 | 0 | 0 | 0 |
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| Inventory write-down | - | - | - | 0 | 1 | 0 | 1 |
|---|
| Depreciation and amortization expenses | - | - | 4 | 5 | 6 | 8 | 9 |
|---|
| Amortization of deferred income | - | -312,000 | -0 | -0 | -1 | -3 | -3 |
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| Tangible Asset Impairment Charges | - | - | - | - | - | - | 0 |
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| Share-based compensation | 10 | 12 | 20 | 25 | 41 | 61 | 80 |
|---|
| Amortization of deferred income | - | -312,000 | -0 | -0 | -1 | -3 | -3 |
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| Noncash research and development expenses | - | - | - | - | 62 | - | - |
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| Share-based compensation | 10 | 12 | 20 | 25 | 41 | 61 | 80 |
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| Share of loss from equity method investment | -249,652 | -586,551 | - | -1 | -1 | -0 | - |
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| Noncash research and development expenses | - | - | - | - | 62 | - | - |
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| Loss On Fair Value Changes Of Equity Investment With Readily Determinable Fair Value | - | - | - | - | 15 | 9 | - |
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| Share of loss from equity method investment | -249,652 | -586,551 | - | -1 | -1 | -0 | - |
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| Loss on disposal of property and equipment | -12,961 | -704 | -0 | 0 | -0 | -1 | -0 |
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| (Gain) loss from fair value changes of equity investment with readily determinable fair value | - | - | - | - | - | - | 3 |
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| Noncash lease expenses | - | - | 3 | 4 | 6 | 8 | 9 |
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| Loss on disposal of property and equipment | -12,961 | -704 | -0 | 0 | -0 | -1 | -0 |
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| Foreign currency remeasurement loss (gain) | - | - | - | - | - | -56 | -15 |
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| Gain on disposal of land use right | - | - | - | - | - | - | 0 |
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| Accounts receivable | - | 89,708 | 4 | 1 | 42 | -4 | 20 |
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| Notes receivable | - | - | - | - | 7 | 2 | -2 |
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| Inventories | - | 3,822 | 6 | 7 | 7 | 15 | 15 |
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| Prepayments and other current assets | 810,979 | 5 | 1 | 4 | 7 | 19 | -12 |
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| Long-term deposits | 38,845 | 249,913 | -0 | 0 | 0 | 1 | -0 |
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| Value added tax recoverable | - | - | - | 8 | 2 | -23 | - |
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| Accounts payable | 8 | 28 | -15 | 40 | 64 | -54 | 37 |
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| Other current liabilities | - | - | 9 | -11 | 19 | 7 | 20 |
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| Operating lease liabilities | - | - | -2 | -3 | -5 | -8 | -8 |
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| Deferred income | 2 | - | - | 14 | 11 | -1 | 11 |
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| Other non-current Liabilities | - | - | - | - | - | - | 0 |
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| Noncash lease expenses | - | - | 3 | 4 | 6 | 8 | 9 |
|---|
| Gain from sale of intellectual property | - | - | - | - | - | - | 10 |
|---|
| Foreign currency remeasurement loss (gain) | - | - | - | - | - | -56 | -15 |
|---|
| Accounts receivable | - | 89,708 | 4 | 1 | 42 | -4 | 20 |
|---|
| Notes receivable | - | - | - | - | 7 | 2 | -2 |
|---|
| Inventories | - | 3,822 | 6 | 7 | 7 | 15 | 15 |
|---|
| Prepayments and other current assets | 810,979 | 5 | 1 | 4 | 7 | 19 | -12 |
|---|
| Long-term deposits | 38,845 | 249,913 | -0 | 0 | 0 | 1 | -0 |
|---|
| Value added tax recoverable | - | - | - | 8 | 2 | -23 | - |
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| Accounts payable | 8 | 28 | -15 | 40 | 64 | -54 | 37 |
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| Other current liabilities | - | - | 9 | -11 | 19 | 7 | 20 |
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| Operating lease liabilities | - | - | -2 | -3 | -5 | -8 | -8 |
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| Deferred income | 2 | - | - | 14 | 11 | -1 | 11 |
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| Other non-current Liabilities | - | - | - | - | - | - | 0 |
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| Net cash provided by (used in) operating activities | - | -97,538,022 | -191 | -216 | -549 | -368 | -198 |
|---|
| Purchase of short-term investments | - | 200 | 278 | 949 | 445 | 260 | 134 |
|---|
| Proceeds from maturity of short-term investments | - | - | - | - | - | 705 | 118 |
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| Purchase of investment in equity investee | 2 | 2 | - | - | 30 | - | - |
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| Purchase of property and equipment | 9 | 10 | 6 | 10 | 18 | 25 | 7 |
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| Proceeds from the sale of property and equipment | 82,789 | - | - | - | 0 | - | 0 |
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| Acquisition of intangible assets | 14,690 | 102,834 | 1 | 1 | 1 | 0 | 1 |
|---|
| Net cash (used in) provided by investing activities | - | -212,553,897 | -15 | -555 | 250 | 420 | -11 |
|---|
| Proceeds from Sale of Intangible Assets | - | - | - | - | - | - | 10 |
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| Proceeds from disposal of land use right | - | - | - | - | - | - | 4 |
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| Net cash (used in) provided by investing activities | - | -212,553,897 | -15 | -555 | 250 | 420 | -11 |
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| Repayment of short-term borrowings | - | - | 4 | 7 | - | - | - |
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| Proceeds from Stock Options Exercised | 65,500 | 195,711 | 1 | 7 | 7 | 6 | 2 |
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| Proceeds from Stock Options Exercised | 65,500 | 195,711 | 1 | 7 | 7 | 6 | 2 |
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| Proceeds from Issuance Initial Public Offering | 160 | 141 | 216 | 1,138 | 819 | - | - |
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| Proceeds from Issuance Initial Public Offering | 160 | 141 | 216 | 1,138 | 819 | - | - |
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| Payment of public offering costs | 3 | 691,527 | 1 | 5 | 2 | - | - |
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| Payment of public offering costs | 3 | 691,527 | 1 | 5 | 2 | - | - |
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| Taxes paid related to settlement of equity awards | - | - | - | - | - | - | 9 |
|---|
| Employee taxes paid related to settlement of equity awards | - | - | - | - | -4 | -8 | - |
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| Net cash (used in) provided by financing activities | - | 144 | 219 | 1,132 | 820 | -2 | -6 |
|---|
| Net cash (used in) provided by financing activities | - | 144 | 219 | 1,132 | 820 | -2 | -6 |
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| Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash | - | - | 0 | 5 | 1 | -6 | -3 |
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| Net (decrease) increase in cash, cash equivalents and restricted cash | - | - | 13 | 366 | 522 | 44 | -218 |
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| Payables for purchase of property and equipment | 413,657 | 2 | 0 | 1 | 3 | 5 | 2 |
|---|
| Non Cash Payables For Intangible Assets | - | 225,158 | - | 0 | 0 | 0 | 12 |
|---|
| Payables for treasury stock | - | - | - | - | 0 | 0 | - |
|---|
| Payables for treasury stock | - | - | - | - | 0 | 0 | - |
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| Right-of-use asset acquired under operating leases | - | - | - | - | - | 15 | 4 |
|---|
| Right-of-use asset acquired under operating leases | - | - | - | - | - | 15 | 4 |
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| Receivables for disposal of property and equipment | - | - | - | - | - | 0 | - |
|---|
| Receivables for disposal of property and equipment | - | - | - | - | - | 0 | - |
|---|
| Interest paid | - | 35,799 | 0 | 0 | - | - | - |
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