Income Taxes (Narrative) (Details) - USD ($)	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Income taxes paid (refund) [abstract]
Net operating losses carried forward - US	$ 5,111,610	$ 5,032,915
Preacquisition net operating loss carryforwards	$ 4,930,000
Description for limitations of utilization of net operating loss carryforwards	Utilization of net operating loss carryforwards may be subject to limitations in the event of a change in ownership pursuant to United States Internal Revenue Code ("IRC") § 382, and similar state provisions. As a result of the acquisition of Prismic on June 28, 2019, the preacquisition net operating loss carryforwards of approximately $4.93 million could be subject to IRC § 382 limitation as the acquisition could constitute a change of ownership.

The amount of deductible temporary differences of domestic non-capital losses carried forward for which no deferred tax asset is recognised in the statement of financial position.

No definition available.

Name:	huge_DeductibleTemporaryDifferencesOfDomesticNonCapitalLossesCarriedForwardForWhichNoDeferredTaxAssetIsRecognised
Namespace Prefix:	huge_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant