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Note 11 - Intangibles Note 12 - Restructuring Note 13 - Segment Information Note 2 - Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) us-gaap_LiabilitiesCurrent Total current liabilities Note 2 - Summary of Significant Accounting Policies - Financial Assets Measured at Fair Value (Details) Note 2 - Summary of Significant Accounting Policies - Fair Value Liabilities Measured on Recurring Basis (Details) Schedule of Debt [Table Text Block] Note 3 - Accounts Receivable - Summary of Accounts Receivable (Details) Note 4 - Inventory - Schedule of Inventory (Details) Note 5 - Prepaid Expenses and Other Current Assets - Schedule of Prepaid Expenses and Other Current Assets (Details) Inducement Equity Incentive Plan [Member] Relating to Inducement Equity Incentive Plan. Note 6 - Accrued and Other Current Liabilities - Schedule of Accrued and Other Current Liabilities (Details) Note 7 - Credit Facility and Warrants - Schedule of Credit Facility and Term Loans (Details) Note 7 - Credit Facility and Warrants - Schedule of Interest Expense, Net (Details) Note 8 - Stock-based Compensation - Schedule of Option Activity (Details) Note 8 - Stock-based Compensation - Restricted Stock Activity (Details) Intangible assets, additions Note 8 - Stock-based Compensation - Schedule of Stock-based Compensation Expense (Details) Note 9 - Net Loss Per Share - Schedule of Net Loss Per Share (Details) Note 11 - Intangibles - Schedule of Intangible Assets (Details) Note 11 - Intangibles - Schedule of Future Amortization Expense (Details) Note 12 - Restructuring - Schedule of Restructuring Costs (Details) Share-Based Payment Arrangement, Option, Activity [Table Text Block] Note 13 - Segment Information - Schedule of Segment Reporting Information, by Segment (Details) Notes To Financial Statements Asset Backed Credit Facility [Member] Represents the asset backed credit facility. 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Commitments and Contingencies Disclosure [Text Block] Property and equipment, net INVESTING ACTIVITIES: Earnings Per Share [Text Block] Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Letter of Credit [Member] Line of Credit [Member] Provision for income taxes us-gaap_OperatingExpenses Total operating expenses us-gaap_DebtInstrumentTerm Debt Instrument, Term (Year) Restricted cash—Other non-current assets Restricted Cash and Cash Equivalent, Noncurrent General and administrative Restricted Cash—Prepaid and other current assets Restricted Cash and Cash Equivalent, Current Cash Cash us-gaap_CashAndCashEquivalentsAtCarryingValue Cash and Cash Equivalent Other vendor and payroll expenses us-gaap_LaborAndRelatedExpense Stock-based compensation expense Total stock-based compensation expense Other comprehensive loss: Amendment Flag us-gaap_ComprehensiveIncomeNetOfTax Comprehensive loss City Area Code Use of Estimates, Policy 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Operating expenses: Income Tax, Policy [Policy Text Block] Schedule of Finite-Lived Intangible Assets [Table Text Block] Prepaid software Amount of consideration paid in advance for software within a future period of one year or the normal operating cycle, if longer. 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Common Stock, Capital Shares Reserved for Future Issuance (in shares) Statistical Measurement [Domain] Maximum [Member] NON-CASH INVESTING AND FINANCING ACTIVITIES: Minimum [Member] Product and Service [Axis] Product and Service [Domain] Statistical Measurement [Axis] Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block] North America [Member] Other prepaid current assets Cash paid for interest Geographical [Axis] Geographical [Domain] Inventory Total inventory Prepaid insurance Fair Value, Inputs, Level 3 [Member] Inventory on-hand Inventory in-transit Fair Value Hierarchy and NAV [Domain] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value Hierarchy and NAV [Axis] us-gaap_OtherInventoryWarehouse Other Inventory, Warehouse, Gross Allowance for credit losses OPERATING ACTIVITIES: Schedule of Segment Reporting Information, by Segment [Table Text Block] Statement [Line Items] Trade accounts receivable us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent Allowance for credit losses us-gaap_NumberOfOperatingSegments Number of Operating Segments Accounts receivable, net Accounts receivable, net Additional paid-in capital AOCI Attributable to Parent [Member] Stockholders' equity: Other Nonoperating Income (Expense) Other expense, net Segment Reporting Disclosure [Text Block] Interest Income and Interest Expense Disclosure [Table Text Block] Restricted cash Current assets: us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations TOTAL CASH AND RESTRICTED CASH Cash and restricted cash at beginning of year Cash and restricted cash at end of year Private Placement [Member] Foreign currency effect on cash and restricted cash us-gaap_InvestmentIncomeInterest Interest income us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect Net change in cash and restricted cash for 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Liabilities [Table Text Block] Sales Channel, Through Intermediary [Member] us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminated Restructuring and Related Cost, Number of Positions Eliminated srt_StockRepurchaseProgramAuthorizedAmount1 Share Repurchase Program, Authorized, Amount Other Restructuring [Member] Type of Restructuring [Domain] Accrued and other current liabilities Accrued and current liabilities Represents the amount of accrued expenses and other liabilities classified as current. Share Repurchase Program [Domain] Employee Severance [Member] Share Repurchase Program [Axis] Restructuring and Related Activities Disclosure [Text Block] Non-cash consideration paid to contractors Represents the amount of non-cash consideration paid to contractors. Restructuring and Related Costs [Table Text Block] ater_PaymentsOfInsuranceObligationFinancingActivities Insurance obligation payments Represents the amount of payments of insurance obligations. Restructuring Type [Axis] Fair Value, Liabilities Measured on Recurring Basis [Table Text Block] Provision for sales returns Represents the change in provision for sales returns during the period. FINANCING ACTIVITIES: Accounts payable, accrued and other liabilities Amount of increase (decrease) in accounts payable, accrued, and other liabilities. Other liabilities Amortization of deferred financing cost and debt discounts Represents the amount of amortization of deferred financing costs and debt discounts during the period. Midcap Credit Facility [Member] Relating to the Midcap Credit Facility. Other Than North America [Member] Relating to other than North America. ater_OtherSegmentIncomeExpense Other segment items(2) The amount of other segment income (expense). Home Office [Member] Relating to home office. Cookware, Kitchen Tools, and Gadgets [Member] Relating to cookware, kitchen tools, and gadgets. Housewares [Member] Relating to housewares. Heating, Cooling, and Air Quality [Member] Relating to heating, cooling, and air quality. Health and Beauty [Member] Relating to health and beauty. Kitchen Appliances [Member] Relating to kitchen appliances. Inventories And Cost Of Goods Sold [Policy Text Block] Disclosure of the company's policy regarding inventories and cost of goods sold. Unaudited Interim Financial Information Policy [Policy Text Block] Disclosure of the company's policy regarding unaudited interim financial information policy. Schedule Of Prepaid Expenses And Other Current Assets [Table Text Block] Tabular disclosure of the company's prepaid expenses and other current assets. Prepaid Expenses And Other Current Assets [Text Block] The entire disclosure for prepaid expenses and other current assets. Essential Oils and Related Accessories [Member] Relating to essential oils and related accessories. Common Stock Warrant [Member] Related to common stock warrant. Warrant Liability [Member] Relating to warrant liability. Product related accruals Carrying value as of the balance sheet date of obligations incurred through that date and payable for product related accruals. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Warrant liabilities Represents the amount of warrant liability classified as current. Accrued fulfillment expense Carrying value as of the balance sheet date of obligations incurred through that date and payable for fulfillment expense. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Prepaid freight forwarder Amount of consideration paid in advance for freight forwarder that provide economic benefits within a future period of one year or the normal operating cycle, if longer. Prepaid inventory Amount of consideration paid in advance for inventory that provide economic benefits within a future period of one year or the normal operating cycle, if longer. us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates Purchase of minority equity investment us-gaap_StockholdersEquity Total stockholders’ equity BALANCE BALANCE Accrued logistics costs Carrying value as of the balance sheet date of obligations incurred through that date and payable for logistics costs. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Midcap Warrant [Member] Relating to the Midcap warrant. Class of Stock [Axis] Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] ater_LineOfCreditFacilityMaximumLiquidityRequirementsAtAllOtherTimes Line Of Credit Facility, Maximum Liquidity Requirements At All Other Times Represents the maximum liquidity requirements at all other times on a line of credit facility. ater_LineOfCreditFacilityMaximumLiquidityRequirementsDuringPeriod Line Of Credit Facility, Maximum Liquidity Requirements During Period Represents the maximum liquidity requirements during the period for a line of credit facility. Term Secured Overnight Financing Rate [Member] Relating to the Term Secured Overnight Financing Rate. Securities Purchase Agreement [Member] Relating to securities purchase agreements.