Risks and Uncertainties (Details) $ in Thousands	Mar. 31, 2019 USD ($)
Risks and Uncertainties [Abstract]
Working capital	$ 26,320

Amount of working capital (deficit) i.e., calculated based on current assets less current liabilities.

No definition available.

Name:	aqst_WorkingCapitalDeficit
Namespace Prefix:	aqst_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant