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Additional Information-Financial Statement Schedule I Condensed Financial Information of Parent Company | 12 Months Ended
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Dec. 31, 2020
Additional Information-Financial Statement Schedule I Condensed Financial Information of Parent Company |
Additional Information-Financial Statement Schedule I Condensed Financial Information of Parent Company | BALANCE SHEETS (U.S. dollars in thousands) ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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 (U.S. dollars in thousands) ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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 (U.S. dollars in thousands, except share data and per share data, or otherwise noted) ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 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
1. BASIS FOR PREPARATION The condensed financial information of the Parent Company has been prepared using the same accounting policies as set out in the Company’s consolidated financial statements except that the Parent Company used the equity method to account for investments in its subsidiaries and VIE. On April 30, 2019, KAH consummated the SPAC Transaction pursuant to the Share Exchange Agreement, where KAH acquired 100% of the issued and outstanding ordinary shares of KAG. The transaction is accounted for as a reverse recapitalization, which is equivalent to the issuance of shares by KAG for the net monetary assets of KAH, accompanied by a recapitalization. KAG is determined as the predecessor and the historical financial statements of KAG became KAH’s historical financial statements, with retrospective adjustments to give effect of the reverse recapitalization. As such, the historical consolidated comparative information as of and for the year ended December 31, 2018 in this Schedule I relates to KAG. The par value of ordinary shares was adjusted retrospectively from $16 to $2, the subscription receivable was adjusted retrospectively from negative $16 to $nil, and the difference of $2 was adjusted retrospectively as in addition paid-in capital as of December 31, 2018. Subsequent to April 30, 2019, the information relates to the KAH, with KAH as the accounting acquire in the reverse recapitalization. 2. INVESTMENTS IN SUBSIDIARIES, VIEs AND VIEs’ SUBSIDIARIES The Parent Company and its subsidiaries, VIEs and VIEs’ subsidiaries were included in the consolidated financial statements where inter-company balances and transactions were eliminated upon consolidation. For the purpose of the Parent Company’s stand-alone financial statements, its investments in subsidiaries, VIEs and VIEs’ subsidiaries were reported using the equity method of accounting. The Parent Company’s share of loss from its subsidiaries, VIEs and VIEs’ subsidiaries were reported as share of loss of subsidiaries, VIEs and VIEs’ subsidiaries in the accompanying Parent Company financial statements. Ordinarily, under the equity method, an investor in an equity method investee would cease to recognize its share of the losses of an investee once the carrying value of the investment has been reduced to nil absent an undertaking by the investor to provide continuing support and fund losses. For the purpose of this Schedule I, the Parent Company has continued to reflect its share, based on its proportionate interest, of the losses of subsidiaries, VIEs and VIEs’ subsidiaries regardless of the carrying value of the investment even though the Parent Company is not obligated to provide continuing support or fund losses.

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- Definition The entire disclosure for condensed financial information, including the financial position, cash flows, and the results of operations of the registrant (parent company) as of the same dates or for the same periods for which audited consolidated financial statements are being presented. Alternatively, the details of this disclosure can be reported by the specific parent company taxonomy elements, indicating the appropriate date and period contexts in an instance document. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04(Schedule I)) -URI http://asc.fasb.org/extlink&oid=120391182&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=108774443&loc=d3e5283-111683 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690 + Details
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