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Other Payables and Accruals (Details)	Dec. 31, 2021	Dec. 31, 2020
Other Payables and Accruals [Abstract]
Number of customers	1	1

X

- Definition

Number of customers.

+ References

No definition available.

+ Details

Name:	fhai_NumberOfCustomers
Namespace Prefix:	fhai_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

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- References

No definition available.

+ Details

Name:	us-gaap_PayablesAndAccrualsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration