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Additional Information - Condensed Financial Statements of the Parent Company (Tables) | 12 Months Ended
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Dec. 31, 2020
Additional Information - Condensed Financial Statements of the Parent Company |
Schedule of condensed statements of operations and comprehensive loss | Condensed statements of operations and comprehensive loss:
|  | For the year ended December 31,
|  | 2018 |  | 2019 |  | 2020
|  | RMB |  | RMB |  | RMB |  | US$
Operating expenses: |  |  |  |  |  |  |  |
Selling and marketing expenses |  | (1,511) |  | (256) |  | 219 |  | 34
General and administrative expenses |  | (12,936) |  | (19,801) |  | (11,492) |  | (1,761)
Research and development expenses |  | (84) |  | (422) |  | 232 |  | 36
Total operating expenses |  | (14,531) |  | (20,479) |  | (11,041) |  | (1,691)
Interest (expenses)/income, net |  | (1,470) |  | 6,142 |  | 1,425 |  | 217
Change in fair value of warrant |  | (3,843) |  | — |  | — |  | —
Equity in loss of subsidiaries, VIEs and subsidiaries of VIEs |  | (58,864) |  | (235,804) |  | (153,967) |  | (23,596)
Others, net |  | 8 |  | (499) |  | 549 |  | 84
Net loss attributable to ordinary shareholders |  | (78,700) |  | (250,640) |  | (163,034) |  | (24,986)
Accretions to preferred shares redemption value |  | (35,066) |  | — |  | — |  | —
Net loss |  | (113,766) |  | (250,640) |  | (163,034) |  | (24,986)
Other comprehensive income/(loss): |  |  |  |  |  |  |  |
Foreign currency translation adjustments, net of nil tax |  | 3,401 |  | 8,416 |  | (6,853) |  | (1,050)
Total comprehensive loss |  | (110,365) |  | (242,224) |  | (169,887) |  | (26,036)
Schedule of condensed balance sheets | Condensed balance sheets:
|  | As of December 31
|  | 2019 |  | 2020
|  | RMB |  | RMB |  | US$
ASSETS |  |  |  |  |  |
Current assets: |  |  |  |  |  |
Cash and cash equivalents |  | 102,002 |  | 46,501 |  | 7,127
Time deposits |  | 69,762 |  | 45,674 |  | 7,000
Prepayment and other current assets |  | 104,572 |  | (12,897) |  | (1,977)
Receivables due from subsidiaries, VIEs and subsidiaries of VIEs |  | 110,348 |  | 119,533 |  | 18,319
Total current assets |  | 386,684 |  | 198,811 |  | 30,469
Non-current assets: |  |  |  |  |  |
Investments in subsidiaries, VIEs and subsidiaries of VIEs |  | 46,087 |  | 97,465 |  | 14,937
Total non-current assets |  | 46,087 |  | 97,465 |  | 14,937
TOTAL ASSETS |  | 432,771 |  | 296,276 |  | 45,406
LIABILITIES AND SHAREHOLDERS’ EQUITY |  |  |  |  |  |
Current liabilities: |  |  |  |  |  |
Other taxes payable |  | 6,654 |  | 6224 |  | 954
Other current liabilities |  | 325 |  | 390 |  | 60
Total current liabilities |  | 6,979 |  | 6,614 |  | 1,014
Non-current liabilities: |  |  |  |  |  |
Other non-current liabilities |  | 2,158 |  | 1,498 |  | 230
Total non-current liabilities |  | 2,158 |  | 1,498 |  | 230
TOTAL LIABILITIES |  | 9,137 |  | 8,112 |  | 1,244
SHAREHOLDERS’ EQUITY |  |  |  |  |  |
Class A ordinary shares |  | 173 |  | 181 |  | 28
Class B ordinary shares |  | 35 |  | 35 |  | 5
Treasury stock |  | (46,533) |  | (45,886) |  | (7,032)
Additional paid-in capital |  | 1,187,577 |  | 1,221,339 |  | 187,177
Accumulated deficit |  | (718,666) |  | (881,700) |  | (135,126)
Accumulated other comprehensive income/(loss) |  | 1,048 |  | (5,805) |  | (890)
TOTAL SHAREHOLDERS' EQUITY |  | 423,634 |  | 288,164 |  | 44,162
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY |  | 432,771 |  | 296,276 |  | 45,406
Schedule of condensed statements of cash flows | Condensed statements of cash flows:
|  | For the year ended December 31,
|  | 2018 |  | 2019 |  | 2020
|  | RMB |  | RMB |  | RMB |  | US$
Net cash used in operating activities |  | (9,640) |  | (3,086) |  | (13,622) |  | (2,087)
Cash flows from investing activities: |  |  |  |  |  |  |  |
Cash paid for investments in subsidiaries, VIEs and subsidiaries of VIEs |  | (201,744) |  | (151,006) |  | (66,027) |  | (10,119)
Cash payment of time deposits |  | — |  | (69,762) |  | (141,016) |  | (21,611)
Cash payment of bridge loan |  | — |  | (99,148) |  | — |  | —
Cash received from maturity of time deposits |  | — |  | — |  | 166,192 |  | 25,469
Net cash used in investing activities |  | (201,744) |  | (319,916) |  | (40,851) |  | (6,261)
Cash flows from financing activities: |  |  |  |  |  |  |  |
Cash payments for repurchase of restricted shares from employees |  | — |  | (26,228) |  | — |  | —
Cash payments for repurchase of shares |  | — |  | (13,749) |  | — |  | —
Cash received from acquisition |  | — |  | — |  | 1,330 |  | 204
Proceeds from issuance of Series D-1 convertible redeemable preferred shares |  | 151,118 |  | — |  | — |  | —
Payment of issuance cost for Series D-1 convertible redeemable preferred shares |  | (307) |  | — |  | — |  | —
Proceeds from issuance of Series D-2 convertible redeemable preferred shares |  | 359,834 |  | — |  | — |  | —
Payment of issuance cost for Series D-2 convertible redeemable preferred shares |  | (1,267) |  | — |  | — |  | —
Proceeds of initial public offering, net of issuance costs |  | 103,372 |  | — |  | — |  | —
Cash received from the depositary bank |  | — |  | 2,732 |  | — |  | —
Net cash generated from/(used in) financing activities |  | 612,750 |  | (37,245) |  | 1,330 |  | 204
Effect of exchange rate changes on cash, cash equivalents and restricted cash |  | 12,134 |  | 3,313 |  | (2,358) |  | (361)
Net increase/(decrease) in cash, cash equivalents and restricted cash |  | 413,500 |  | (356,934) |  | (55,501) |  | (8,505)
Cash, cash equivalents and restricted cash at the beginning of year |  | 45,436 |  | 458,936 |  | 102,002 |  | 15,632
Cash, cash equivalents and restricted cash at the end of year |  | 458,936 |  | 102,002 |  | 46,501 |  | 7,127

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