Receivable research incentive (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Receivable research incentive
Receivable research incentive	$ 17,300		$ 17,300		$ 14,271
Income related to the incentive program recorded as grant income	$ 2,000	$ 2,300	$ 5,400	$ 6,600

The sum of amounts currently receivable from tax research premium. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.

No definition available.

Name:	hook_ReceivablesTaxResearchPremiumCurrent
Namespace Prefix:	hook_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant