Revenues and Trade Receivables, Net - Summary of Activity with Sales Related Allowances and Accruals (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2022	Dec. 31, 2021
Accounts Receivable Allowances and Accruals [Roll Forward]
Balance at December 31, 2021	$ 605
Provision	529
Payments / credits	(625)
Balance at June 30, 2022	509
Accrued balances - Trade and other receivables, net	509	$ 605
Accrued balances - Accounts payable and accrued expense	$ 2,656	$ 2,224

- Definition

For an unclassified balance sheet, a valuation of sales allowance for receivables due a company that are expected to be uncollectible and accruals.

+ References

No definition available.

+ Details

Name:	aqst_AccountsReceivableAllowancesAndAccruals
Namespace Prefix:	aqst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

For an unclassified balance sheet, a valuation of sales allowance for receivables due a company that are expected to be uncollectible, classified within Accounts payable and other accrued expenses.

+ References

No definition available.

+ Details

Name:	aqst_AccountsReceivableAllowancesAndAccrualsAccountsPayableAndAccruedExpenses
Namespace Prefix:	aqst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Accounts Receivable Allowances and Accruals

+ References

No definition available.

+ Details

Name:	aqst_AccountsReceivableAllowancesAndAccrualsRollForward
Namespace Prefix:	aqst_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

For an unclassified balance sheet, a valuation of sales allowance for receivables due a company that are expected to be uncollectible, classified within trade and other receivables, net.

+ References

No definition available.

+ Details

Name:	aqst_AccountsReceivableAllowancesAndAccrualsTradeAndOtherReceivablesNet
Namespace Prefix:	aqst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

For an unclassified balance sheet, a valuation of sales allowance for receivables related to credits due a company that are expected to be uncollectible.

+ References

No definition available.

+ Details

Name:	aqst_AccountsReceivableAllowancesCreditsAndPayments
Namespace Prefix:	aqst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

For an unclassified balance sheet, a valuation of sales allowance for receivables related to sales due a company that are expected to be uncollectible.

+ References

No definition available.

+ Details

Name:	aqst_AccountsReceivableAllowancesProvisionReversalRelatedToSales
Namespace Prefix:	aqst_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration