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Document and Entity Information
Financial Statements
CONSOLIDATED BALANCE SHEETS
CONSOLIDATED BALANCE SHEETS (Parenthetical)
CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME
CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (Parenthetical)
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' (DEFICITS)/EQUITY
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' (DEFICITS)/EQUITY (Parenthetical)
CONSOLIDATED STATEMENTS OF CASH FLOWS
Notes to Financial Statements
ORGANIZATION
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
PRINCIPAL RISKS
SHORT-TERM INVESTMENTS, NET
ACCOUNTS RECEIVABLE, NET
INVENTORIES
PREPAID EXPENSES AND OTHER CURRENT ASSETS, NET
PROPERTY AND EQUIPMENT, NET
OTHER NON-CURRENT ASSETS, NET
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES
RELATED PARTY TRANSACTIONS
RESTRICTED NET ASSETS
CONVERTIBLE SENIOR NOTES
ORDINARY SHARES
SENIOR PREFERRED SHARES
SHARE BASED COMPENSATION
TAXATION
NET (LOSS) OR INCOME PER SHARE
LEASES
PROVISION FOR SEC SETTLEMENT
COMMITMENTS AND CONTINGENCIES
SUBSEQUENT EVENTS
PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION
Accounting Policies
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)
Notes Tables
ORGANIZATION (Tables)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
PRINCIPAL RISKS (Tables)
SHORT-TERM INVESTMENTS, NET (Tables)
ACCOUNTS RECEIVABLE, NET (Tables)
INVENTORIES (Tables)
PREPAID EXPENSES AND OTHER CURRENT ASSETS, NET (Tables)
PROPERTY AND EQUIPMENT, NET (Tables)
OTHER NON-CURRENT ASSETS, NET (Tables)
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Tables)
RELATED PARTY TRANSACTIONS (Tables)
SHARE BASED COMPENSATION (Tables)
TAXATION (Tables)
NET (LOSS) OR INCOME PER SHARE (Tables)
LEASES (Tables)
PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION (Tables)
Notes Details
ORGANIZATION (Details)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Convenience translation, Restricted cash, Accounts receivable and Inventories (Details)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property and equipment (Details)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Impairment of long-lived assets other than goodwill (Details)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue recognition (Details)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Sales and marketing expenses and General and administrative expenses ,Income taxes (Details)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Employee benefit expenses and Segment reporting (Details)
PRINCIPAL RISKS (Details)
SHORT-TERM INVESTMENTS, NET - Additional Information (Details)
SHORT-TERM INVESTMENTS, NET (Details)
ACCOUNTS RECEIVABLE, NET (Details)
INVENTORIES (Details)
PREPAID EXPENSES AND OTHER CURRENT ASSETS, NET (Details)
PROPERTY AND EQUIPMENT, NET (Details)
OTHER NON-CURRENT ASSETS, NET (Details)
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Detail)
RELATED PARTY TRANSACTIONS - Significant related party transactions (Details)
RESTRICTED NET ASSETS (Details)
CONVERTIBLE SENIOR NOTES (Details)
ORDINARY SHARES (Details)
SENIOR PREFERRED SHARES (Details)
SHARE BASED COMPENSATION (Details)
SHARE BASED COMPENSATION - Options granted to employees (Details)
SHARE BASED COMPENSATION - Fair value of employee share options (Details)
TAXATION - Enterprise income tax ("EIT") (Details)
TAXATION - The Components of income(loss) before tax (Details)
TAXATION - Reconciliation of tax (Details)
TAXATION - Components of deferred taxes (Details)
TAXATION - Unrecognized tax benefits (Details)
NET (LOSS) OR INCOME PER SHARE (Details)
LEASES - Supplemental balance sheet information related to operating lease (Details)
LEASES - The weighted average remaining lease terms and discount rates (Details)
LEASES - Future minimum lease payments (Details)
PROVISION FOR SEC SETTLEMENT (Details)
COMMITMENTS AND CONTINGENCIES - Capital commitments (Details)
COMMITMENTS AND CONTINGENCIES - Contingency (Details)
SUBSEQUENT EVENTS (Details)
PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION - Condensed balance sheets (Details)
PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION - Condensed statements of comprehensive loss (Details)
PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION - Condensed statements of cash flows (Details)
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