XML 52 R41.htm IDEA: XBRL DOCUMENT v3.22.0.1

Deposits (Tables)

12 Months Ended

Dec. 31, 2021

Disclosure Text Block [Abstract]

Scheduled Maturities of Time Deposits

As of December 31, 2021, the scheduled maturities of the Company’s time deposits were as follows:

		(Dollars in Thousands)
2022		$	135,443
2023			28,859
2024			16,973
2025			25,213
2026			6,540
Total		$	213,028

X

- Definition

Scheduled Maturities of Time Deposits Table Text Block.

+ References

No definition available.

+ Details

Name:	fusb_ScheduledMaturitiesOfTimeDepositsTableTextBlock
Namespace Prefix:	fusb_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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