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Note 6 - Assets Held for Sale (Details Textual) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2021
Assets Held for Sale, Additions	$ 0.2	$ 5.4
Assets Held For Sale, Disposals, Book Value	$ 1.4	$ 2.2

X

- Definition

The amount of additions to assets held-for-sale during the period.

+ References

No definition available.

+ Details

Name:	aqms_AssetsHeldForSaleAdditions
Namespace Prefix:	aqms_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of book value of assets held-for-sale disposed of during the period.

+ References

No definition available.

+ Details

Name:	aqms_AssetsHeldForSaleDisposalsBookValue
Namespace Prefix:	aqms_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration