| Dec 31, 2012 | Dec 31, 2013 | Dec 31, 2014 | Dec 31, 2015 | Dec 31, 2016 | Dec 31, 2017 | Dec 31, 2018 | Dec 31, 2019 | Dec 31, 2020 | Dec 31, 2021 |
|---|
| Profit (loss) before income taxes | -248 | -375 | -406 | -1,271 | -869 | -2,803 | -2,626 | -5,075 | -6,448 | -4,650 |
|---|
| Depreciation | 39 | 60 | 97 | 330 | 402 | 610 | 559 | 542 | 517 | 610 |
|---|
| Amortization of long-term prepaid expenses | - | - | - | - | - | - | - | - | 67 | 431 |
|---|
| Share-based payment expenses | - | - | - | - | - | - | - | - | 13 | 508 |
|---|
| Foreign exchange losses (gains) | - | - | - | - | - | - | - | - | 39 | -1,084 |
|---|
| Share issuance costs | - | 3 | 9 | 39 | - | - | 21 | 22 | 23 | 50 |
|---|
| Commission expenses | - | - | - | - | - | - | - | 222 | 1,313 | 1,335 |
|---|
| Subsidy income | -1 | -91 | -101 | -26 | -1,657 | -120 | -90 | -146 | -91 | -148 |
|---|
| Interest expenses | - | - | - | 0 | 1 | 1 | 1 | 12 | 69 | 837 |
|---|
| Share of loss (profit) of entities accounted for using equity method | - | - | 6 | 4 | - | - | 5 | 57 | 7 | - |
|---|
| Loss on cancellation of leases | - | - | - | - | - | - | - | - | 134 | - |
|---|
| Loss (gain) on sale of investment securities | - | - | - | - | - | - | - | -93 | - | -45 |
|---|
| Loss (gain) on valuation of investment securities | - | - | - | - | - | - | - | - | - | 88 |
|---|
| Increase (decrease) in provision for surcharge | - | - | - | - | - | 27 | 39 | 39 | 11 | - |
|---|
| Loss on tax purpose reduction entry of non-current assets | - | - | - | - | 284 | - | - | - | 26 | - |
|---|
| Loss on retirement of non-current assets | - | - | 0 | 36 | 16 | 1 | 1 | 2 | 6 | 10 |
|---|
| Impairment losses | - | - | - | - | 268 | 216 | - | 106 | 215 | 15 |
|---|
| Loss on retirement of treasury subscription rights to shares | - | - | - | - | - | - | - | - | - | 15 |
|---|
| Decrease (increase) in consumption taxes refund receivable | 3 | -13 | - | - | - | - | -49 | -251 | -335 | -100 |
|---|
| Increase (decrease) in accounts payable - other | 11 | -0 | 13 | 33 | 116 | 42 | 31 | 36 | -138 | -8 |
|---|
| Increase (decrease) in advances received | 142 | 245 | 128 | -308 | -206 | 33 | -33 | 0 | 5 | 7 |
|---|
| Other non-cash gains and losses | - | - | - | - | - | - | - | 2,189 | 2,284 | - |
|---|
| Other, net | -1 | 4 | 14 | 79 | -310 | -317 | 72 | -46 | 62 | -178 |
|---|
| Subtotal | -53 | -345 | -284 | -951 | -1,940 | -2,268 | -2,145 | -2,551 | -2,427 | -2,526 |
|---|
| Interest received | 0 | 0 | 0 | 1 | 12 | 2 | 0 | 1 | 0 | 1 |
|---|
| Interest paid | - | - | - | - | -1 | -1 | -1 | -5 | -72 | -829 |
|---|
| Subsidies received | 1 | 87 | 582 | 677 | 624 | 86 | 164 | 188 | 165 | 114 |
|---|
| Income taxes paid | -0 | -0 | -1 | -2 | -5 | -5 | -20 | -14 | -5 | -15 |
|---|
| Net cash provided by (used in) operating activities | -52 | -257 | 297 | -276 | -1,310 | -2,185 | -2,001 | -2,372 | -2,339 | -3,254 |
|---|
| Purchase of property, plant and equipment | -109 | -273 | -382 | -2,153 | -913 | -1,853 | -1,175 | -3,790 | -4,197 | -4,571 |
|---|
| Proceeds from sale of property, plant and equipment | - | - | - | - | 80 | - | - | 5 | - | 0 |
|---|
| Purchase of intangible assets | -0 | -1 | -0 | -7 | -7 | -15 | -5 | -80 | -3 | -26 |
|---|
| Purchase of long-term prepaid expenses | - | - | - | - | - | - | - | - | -1,132 | -6,249 |
|---|
| Proceeds from purchase of shares of subsidiaries resulting in change in scope of consolidation | - | - | - | - | - | - | - | - | 4 | - |
|---|
| Purchase of investment securities | - | - | - | - | - | - | -100 | - | -100 | - |
|---|
| Proceeds from sale of investment securities | - | - | - | - | - | - | - | 100 | - | 45 |
|---|
| Purchase Of Beneficiary Right Of Accounts Receivable In Trust | - | - | - | - | - | - | - | - | - | -5,000 |
|---|
| Proceeds From Sales Of Beneficiary Right Of Accounts Receivable In Trust | - | - | - | - | - | - | - | - | - | 5,000 |
|---|
| Other payments | - | - | - | - | - | - | - | - | - | -5 |
|---|
| Net cash provided by (used in) investing activities | -109 | -275 | -422 | -5,120 | 2,160 | -1,868 | -1,282 | -3,780 | -5,429 | -10,806 |
|---|
| Proceeds from short-term borrowings | - | - | - | - | - | - | - | - | 1,000 | - |
|---|
| Repayments of short-term borrowings | - | - | - | - | - | - | - | - | -1,000 | - |
|---|
| Proceeds from long-term borrowings | - | - | - | 300 | - | - | - | 1,500 | 17,800 | 25,500 |
|---|
| Repayments of long-term borrowings | - | - | - | - | - | - | - | - | -4,301 | -301 |
|---|
| Arrangement fee payment | - | - | - | - | - | - | - | -222 | -1,253 | -1,279 |
|---|
| Repayments of lease obligations | - | - | - | - | - | -7 | -17 | -18 | -19 | -19 |
|---|
| Expenditure for settlement of lease contract cancellation fee-FinCF | - | - | - | - | - | - | - | - | -820 | - |
|---|
| Proceeds from sale and leaseback transactions | - | - | - | - | - | - | - | 302 | 318 | - |
|---|
| Proceeds from issuance of shares | - | 797 | 2,541 | 8,152 | - | 1,600 | 6,179 | 1,978 | 671 | 14,343 |
|---|
| Payments for purchase of treasury subscription right to share-FinCF | - | - | - | - | - | - | - | - | - | -15 |
|---|
| Net cash provided by (used in) financing activities | - | 797 | 2,991 | 8,700 | - | 1,309 | 5,842 | 3,040 | 12,396 | 38,228 |
|---|
| Effect of exchange rate change on cash and cash equivalents | - | - | - | - | - | - | -24 | 39 | 21 | 159 |
|---|
| Net increase (decrease) in cash and cash equivalents | -161 | 266 | 2,865 | 3,303 | 850 | -2,745 | 2,534 | -3,073 | 4,610 | 24,327 |
|---|