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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Accounts payable | $ 402 | $ 4,122
Short-term debt | 15,257 | 16,630
Accrued expenses and other current liabilities | 14,683 | 17,302
Amounts due to related parties | 2,960 | 4,214
Advance from customers | 1,863 | 1,677
Income tax payable | 4,042 | 5,319
Lease liabilities - non-current | $ 26 | $ 810
Ordinary shares, authorized | 500,000,000 | 200,000,000
Ordinary shares, par value (in dollars per share) | $ 0.0001 | $ 0.0001
Ordinary shares, issued | 64,112,855 | 59,150,341
Ordinary shares, outstanding | 64,112,855 | 59,150,341
Preferred shares, par value (in dollars per share) | $ 0.0001 | $ 0.0001
Preferred shares, authorized | 6,000 |
Preferred shares, issued | 3,000 | 0
Preferred shares, outstanding | 3,000 | 0

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