| Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 |
|---|
| Net loss | -152 | -321 | -2,032 |
|---|
| Net loss from discontinued operations, net of tax | 14 | - | - |
|---|
| Depreciation and amortization | 321 | 590 | 1,214 |
|---|
| Share-based compensation expenses | 143 | 1,101 | 2,053 |
|---|
| Foreign exchange loss | -4 | -47 | -3 |
|---|
| Unrealized investment (income)/loss | 33 | -14 | -9 |
|---|
| Interest expense | 65 | 61 | 30 |
|---|
| Share of loss of equity method investees | -3 | -0 | -10 |
|---|
| Asset Impairment Charges | 30 | 38 | - |
|---|
| Inventory write-downs and purchase obligation | - | - | 1,127 |
|---|
| Allowance for credit losses | - | 6 | 3 |
|---|
| Changes in fair value of warrants and derivative liabilities | -272 | - | - |
|---|
| Deferred income tax, net | -23 | 169 | -128 |
|---|
| Loss on disposal of property, plant and equipment | -0 | -20 | -56 |
|---|
| Prepayments and other current assets | -459 | 99 | 1,172 |
|---|
| Inventories | 517 | 612 | 5,920 |
|---|
| Operating lease rightofuse assets | 767 | 675 | 767 |
|---|
| Operating lease liabilities | - | 696 | 800 |
|---|
| Other non-current assets | -2 | 633 | 745 |
|---|
| Trade receivable | 107 | 5 | -72 |
|---|
| Deferred revenue | 345 | 288 | 5 |
|---|
| Trade and notes payable | 2,530 | 6,213 | 10,594 |
|---|
| Amounts due to related parties | 9 | -12 | -30 |
|---|
| Accruals and other current liabilities | 131 | 932 | 1,167 |
|---|
| Other noncurrent liabilities | 165 | 524 | 1,032 |
|---|
| Net cash provided by continuing operating activities | 3,140 | 8,340 | 7,380 |
|---|
| Net cash provided by discontinued operating activities | 0 | - | - |
|---|
| Net cash provided by operating activities | 3,140 | 8,340 | 7,380 |
|---|
| Purchase of property, plant and equipment and intangible assets | 675 | 3,445 | 5,128 |
|---|
| Disposal of property, plant and equipment | 1 | 0 | 5 |
|---|
| Purchase of long-term investments | 65 | - | 714 |
|---|
| Placement of time deposits | 1,038 | 1,308 | 679 |
|---|
| Redemption of time deposits | 602 | 1,631 | 514 |
|---|
| Placement of short-term investments | 105,279 | 220,850 | 58,268 |
|---|
| Redemption of short-term investments | 87,699 | 220,346 | 59,954 |
|---|
| Placement of long-term financial instruments | - | - | 50 |
|---|
| Loan to a supplier | 6 | - | - |
|---|
| Cash paid related to acquisition, net of cash acquired | 35 | - | - |
|---|
| Net cash used in continuing investing activities | -18,797 | -4,257 | -4,365 |
|---|
| Net cash provided by discontinued investing activities | 60 | - | - |
|---|
| Net cash used in investing activities | -18,738 | -4,257 | -4,365 |
|---|
| Proceeds from Other Equity | - | - | 2,462 |
|---|
| Proceeds From Exercise of Stock Options and Vesting of Rsu's | - | - | 7 |
|---|
| Proceeds from borrowings | - | - | 3,741 |
|---|
| Repayment of borrowings | 145 | - | 661 |
|---|
| Repayment of unsecured corporate loan | - | 430 | - |
|---|
| Series D Convertible Redeemable Preferred Shares | 3,830 | - | - |
|---|
| Proceeds from Convertible Debt | - | 5,533 | - |
|---|
| Proceeds from Noncontrolling Interests | - | - | 90 |
|---|
| Proceeds from Issuance Initial Public Offering and Private Placements | 11,035 | - | - |
|---|
| Proceeds from HK IPO, net of issuance cost | - | 11,005 | - |
|---|
| Proceeds from Issuance of Common Stock | 9,991 | 0 | - |
|---|
| Net cash provided by continuing financing activities | 24,711 | 16,710 | 5,639 |
|---|
| Net cash provided by financing activities | 24,711 | 16,710 | 5,639 |
|---|
| Effects of exchange rate changes on cash and cash equivalents and restricted cash | -377 | -472 | 1,270 |
|---|
| Net increase in cash, cash equivalents and restricted cash | 8,736 | 20,321 | 9,925 |
|---|
| Payable related to acquisition of Chongqing Zhizao | 80 | 2 | - |
|---|
| Payable related to purchase of property, plant and equipment | 118 | 456 | 2,630 |
|---|
| Property Plant And Equipment And Other Assets Related To Capital Injection By Noncontrolling Interest Shareholders | - | - | 229 |
|---|
| Cash paid for interest, net of amounts capitalized | - | - | 88 |
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