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Additional Information-Financial Statement Schedule I Condensed Financial Information of Parent Company (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Additional Information-Financial Statement Schedule I Condensed Financial Information of Parent Company |
BALANCE SHEETS | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of December 31,
​ |  | 2019 |  | 2020
ASSETS |  | ​ |  |  | ​ |
Current assets: |  | ​ |  |  | ​ |
​ | ​ | ​ | ​ | ​ | ​ | ​
Cash | ​ | $ | 40 | ​ | $ | 3,005
Total current assets | ​ | ​ | 40 | ​ | ​ | 3,005
Investment in subsidiaries | ​ |  | 899 | ​ |  | —
TOTAL ASSETS | ​ | $ | 939 | ​ | $ | 3,005
LIABILITIES AND EQUITY | ​ |  |  | ​ |  |
Current liabilities: | ​ |  |  | ​ |  |
Accrued expenses | ​ |  | 1,211 | ​ |  | 711
Amounts due to subsidiaries | ​ | ​ | 1,684 | ​ | ​ | —
Amounts due to related parties | ​ |  | 2,614 | ​ |  | —
Warrant liabilites | ​ | ​ | — | ​ | ​ | 1,690
Total current liabilities | ​ |  | 5,509 | ​ |  | 2,401
Non-current liabilities: | ​ | ​ | ​ | ​ | ​ | ​
Deficit of investment in subsidiaries | ​ |  | — | ​ |  | 659
Total non-current liabilities | ​ |  | — | ​ |  | —
TOTAL LIABILITIES | ​ | $ | 5,509 | ​ | $ | 3,060
​ | ​ | ​ | ​ | ​ | ​ | ​
Deficit: | ​ |  |  | ​ |  |
Ordinary shares | ​ | $ | 5 | ​ | $ | 6
Additional paid-in capital | ​ |  | 186,450 | ​ |  | 196,335
Accumulated deficit | ​ |  | (188,185) | ​ |  | (193,488)
Accumulated other comprehensive income (loss) | ​ |  | (2,840) | ​ |  | (2,908)
Total deficit | ​ |  | (4,570) | ​ |  | (55)
TOTAL LIABILITIES AND DEFICIT | ​ | $ | 939 | ​ | $ | 3,005
STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years ended December 31,
​ |  | 2018 |  | 2019 |  | 2020
Selling and marketing | ​ | $ | (1,504) | ​ | $ | — | ​ | $ | —
Research and development |  | ​ | (107) |  | ​ | — |  | ​ | —
General and administrative |  | ​ | (11,505) |  | ​ | (371) |  | ​ | (3,745)
Total operating expenses |  | ​ | (13,116) |  | ​ | (371) |  | ​ | (3,745)
Equity in loss of subsidiaries and variable interest entities |  | ​ | (76,099) |  | ​ | (45,745) |  | ​ | (899)
Net loss | ​ | $ | (89,215) | ​ | $ | (46,116) | ​ | $ | (4,644)
Other comprehensive income (loss), net of tax: | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​
Foreign currency translation | ​ | ​ | 404 | ​ |  | (4,222) | ​ |  | (68)
Other comprehensive income (loss) | ​ | $ | 404 | ​ | $ | (4,222) | ​ | $ | (68)
Comprehensive loss | ​ | $ | (88,811) | ​ | $ | (50,338) | ​ | $ | (4,712)
STATEMENTS OF CASH FLOWS | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Years ended December 31,
​ | ​ | 2018 | ​ | 2019 | ​ | 2020
Cash flows from operating activities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net loss | ​ | $ | (89,215) | ​ | $ | (46,116) | ​ | $ | (5,302)
Equity in loss of subsidiaries and variable interest entities | ​ |  | 76,099 | ​ |  | 45,745 | ​ |  | 899
Share-based compensation | ​ |  | 11,436 | ​ |  | — | ​ |  | 3,362
Changes in operating assets and liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Amounts due from/to related parties | ​ |  | 173 | ​ |  | (20,980) | ​ |  | —
Accrued expenses and other payables | ​ |  | 581 | ​ |  | (292) | ​ |  | 2,347
Prepaid expenses and other current assets | ​ | ​ | — | ​ | ​ | 123 | ​ | ​ | —
Net cash used in operating activities | ​ |  | (926) | ​ |  | (21,520) | ​ |  | 1,306
Cash flows from investing activities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Repayment of investment in subsidiaries | ​ | ​ | — | ​ | ​ | 1,586 | ​ | ​ | (2,340)
Net cash provided by investing activities | ​ |  | — | ​ |  | 1,586 | ​ |  | (2,340)
Cash flows from financing activities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Proceeds from borrowings | ​ |  | 500 | ​ |  | — | ​ |  | —
Repayment of borrowings | ​ |  | (500) | ​ |  | — | ​ |  | —
Proceeds of advances from related parties | ​ |  | 950 | ​ |  | — | ​ |  | —
Repayment of advances from related parties | ​ |  | — | ​ |  | (1,050) | ​ |  | —
Proceeds from convertible loans | ​ | ​ | — | ​ | ​ | 21,000 | ​ | ​ | —
Proceeds from preferred shares | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 3,000
Proceeds from investors | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1,000
Net cash provided by financing activities | ​ |  | 950 | ​ |  | 19,950 | ​ |  | 4,000
Net increase in cash | ​ |  | 24 | ​ |  | 16 | ​ |  | 2,965
Cash at beginning of year | ​ |  | — | ​ |  | 24 | ​ |  | 40
Effect of exchange rate changes | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Cash at end of year | ​ | $ | 24 | ​ | $ | 40 | ​ | $ | 3,005

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