Consolidated Balance Sheets - USD ($)
|
Dec. 31, 2020 |
Dec. 31, 2019 |
| Current assets: |
|
|
| Cash and cash equivalents |
$ 111,217,606
|
$ 105,603,153
|
| Short-term investments |
524,220,154
|
0
|
| Accounts receivable, net |
27,840,149
|
16,247,565
|
| Prepayments and other current assets |
7,458,832
|
1,381,037
|
| Total current assets |
670,736,741
|
123,231,755
|
| Non-current assets: |
|
|
| Property and equipment, net |
16,753,850
|
6,281,990
|
| Goodwill |
3,089,432
|
0
|
| Intangible assets |
209,277
|
0
|
| Deferred tax assets |
510,500
|
836,514
|
| Other non-current assets |
1,603,937
|
808,862
|
| Total non-current assets |
22,166,996
|
7,927,366
|
| Total assets |
692,903,737
|
131,159,121
|
| Current liabilities: |
|
|
| Accounts payable (including accounts payable of the variable interest entity (“VIE”) without recourse to the Company of US$2,992,628 and US$5,336,880 as of December 31, 2019 and 2020, respectively) |
7,721,368
|
4,088,283
|
| Advances from customers (including advances from customers of the VIE without recourse to the Company of US$733,518 and US$1,112,800 as of December 31, 2019 and 2020, respectively) |
1,338,516
|
920,925
|
| Taxes payable (including taxes payable of the VIE without recourse to the Company of US$756,020 and US$253,617 as of December 31, 2019 and 2020, respectively) |
2,171,280
|
2,493,137
|
| Accrued expenses and other current liabilities (including accrued expenses and other current liabilities of the VIE without recourse to the Company of US$3,440,748 and US$5,035,100 as of December 31, 2019 and 2020, respectively) |
23,925,523
|
10,978,932
|
| Amounts due to related parties |
1,150,000
|
0
|
| Total current liabilities |
36,306,687
|
18,481,277
|
| Long term payable |
81,569
|
0
|
| Deferred tax liabilities |
52,319
|
0
|
| Total non-current liabilities |
133,888
|
0
|
| Total liabilities |
36,440,575
|
18,481,277
|
| Commitments and contingencies (Note 17) |
|
|
| Mezzanine equity |
0
|
239,970,397
|
| Stockholders' (deficit) equity |
|
|
| Ordinary shares |
0
|
11,907
|
| Additional paid-in-capital |
818,427,919
|
0
|
| Accumulated other comprehensive loss (income) |
1,940,970
|
(988,417)
|
| Accumulated deficit |
(163,947,228)
|
(126,316,043)
|
| Total shareholders’ equity (deficit) |
656,463,162
|
(127,292,553)
|
| Total liabilities, mezzanine equity and shareholders’ equity (deficit) |
692,903,737
|
131,159,121
|
| Series A Preferred Stock |
|
|
| Current liabilities: |
|
|
| Mezzanine equity |
0
|
90,049,774
|
| Series B Preferred Stock |
|
|
| Current liabilities: |
|
|
| Mezzanine equity |
0
|
30,045,929
|
| Series B+ Preferred Stock |
|
|
| Current liabilities: |
|
|
| Mezzanine equity |
0
|
46,274,560
|
| Series C Preferred Stock |
|
|
| Current liabilities: |
|
|
| Mezzanine equity |
0
|
73,600,134
|
| Common Class A |
|
|
| Stockholders' (deficit) equity |
|
|
| Ordinary shares |
33,884
|
0
|
| Common Class B |
|
|
| Stockholders' (deficit) equity |
|
|
| Ordinary shares |
$ 7,617
|
$ 0
|