Represents the amount of Earn-out Payment.

No definition available.

Name:	ater_EarnOutPaymentAmount
Namespace Prefix:	ater_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line of credit facility number of monthly installments.

+ References

No definition available.

+ Details

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Namespace Prefix:	ater_
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- Definition

Represents the amount of coupons awarded as part of litigation settlement.

+ References

No definition available.

+ Details

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Namespace Prefix:	ater_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the amount of litigation settlement in paid in cash.

+ References

No definition available.

+ Details

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Namespace Prefix:	ater_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Proceeds to be received from settlement agreement.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount awarded from other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

Amount awarded to other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
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-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

+ References

No definition available.

+ Details

Name:	us-gaap_PurchaseObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred through that date and payable for statutory sales and use taxes, including value added tax. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Namespace Prefix:
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Balance Type:
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- Details

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Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember
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Data Type:	na
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Data Type:	na
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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Note 12 - Commitment and Contingencies (Details Textual) $ in Thousands, Pure in Millions					1 Months Ended	3 Months Ended	12 Months Ended
	Feb. 24, 2022 USD ($)	Feb. 24, 2022 GBP (£)	Nov. 30, 2021 USD ($)	May 02, 2021 USD ($)	Apr. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Purchase Obligation								$ 9,200	$ 6,500
Sales and Excise Tax Payable, Current								989	1,019
Earn-out Payment Dispute [Member]
Earn Out Payment Amount	$ 8,800	£ 6,902,816
Settlement Agreement [Member]
Proceeds to be Received From Settlement Agreement				$ 3,000
Line of Credit Facility, Number of Installments				3
Settlement Agreement [Member] \| Prepaid Expenses and Other Current Assets [Member]
Prepaid Expense, Current								$ 4,100	$ 4,100
Settlement Agreement [Member] \| Third Party [Member]
Proceeds to be Received From Settlement Agreement			$ 1,000
Settlement Agreement [Member] \| First Payment [Member]
Litigation Settlement, Amount Awarded from Other Party							$ 1,000
Securities Purchase Agreement [Member] \| Muller Austria [Member]
Litigation Settlement In Cash					$ 500
Litigation Settlement, Coupons Awarded					$ 300
Litigation Settlement, Amount Awarded to Other Party						$ 800