XML 40 R37.htm IDEA: XBRL DOCUMENT v3.20.1

Investment Securities (Tables)

12 Months Ended

Dec. 31, 2019

Investments Debt And Equity Securities [Abstract]

Schedule of Investment Securities Available-for-Sale and Held-to-Maturity

Details of investment securities available-for-sale and held-to-maturity as of December 31, 2019 and 2018 were as follows:

		Available-for-Sale
		December 31, 2019
		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Estimated Fair Value
		(Dollars in Thousands)
Mortgage-backed securities:
Residential		$	46,182			$	372			$	(209	)		$	46,345
Commercial			43,686				73				(386	)			43,373
Obligations of states and political subdivisions			4,123				95				—				4,218
U.S. Treasury securities			80				—				—				80
Total		$	94,071			$	540			$	(595	)		$	94,016

		Held-to-Maturity
		December 31, 2019
		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Estimated Fair Value
		(Dollars in Thousands)
Mortgage-backed securities:
Commercial		$	8,923			$	2			$	(46	)		$	8,879
Obligations of U.S. government-sponsored agencies			4,324				5				(10	)			4,319
Obligations of states and political subdivisions			1,093				15				—				1,108
Total		$	14,340			$	22			$	(56	)		$	14,306

		Available-for-Sale
		December 31, 2018
		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Estimated Fair Value
		(Dollars in Thousands)
Mortgage-backed securities:
Residential		$	73,859			$	113			$	(1,517	)		$	72,455
Commercial			56,101				10				(1,822	)			54,289
Obligations of states and political subdivisions			5,617				51				(4	)			5,664
U.S. Treasury securities			79				—				—				79
Total		$	135,656			$	174			$	(3,343	)		$	132,487

		Held-to-Maturity
		December 31, 2018
		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Estimated Fair Value
		(Dollars in Thousands)
Mortgage-backed securities:
Commercial		$	11,716			$	—			$	(349	)		$	11,367
Obligations of U.S. government-sponsored agencies			8,026				—				(244	)			7,782
Obligations of states and political subdivisions			1,720				—				(17	)			1,703
Total		$	21,462			$	—			$	(610	)		$	20,852

Maturities of Investment Securities Available-for-Sale and Held-to-Maturity

The scheduled maturities of investment securities available-for-sale and held-to-maturity as of December 31, 2019 are presented in the following table:

		Available-for-Sale								Held-to-Maturity
		Amortized Cost				Estimated Fair Value				Amortized Cost				Estimated Fair Value
		(Dollars in Thousands)
Maturing within one year		$	341			$	344			$	60			$	60
Maturing after one to five years			17,882				17,881				767				779
Maturing after five to ten years			44,274				44,342				7,064				7,035
Maturing after ten years			31,574				31,449				6,449				6,432
Total		$	94,071			$	94,016			$	14,340			$	14,306

Schedule of Unrealized Loss on Investments

The following table reflects gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, as of December 31, 2019 and 2018.

		Available-for-Sale
		December 31, 2019
		Less than 12 Months								12 Months or More
		Fair Value				Unrealized Losses				Fair Value				Unrealized Losses
		(Dollars in Thousands)
Mortgage-backed securities:
Residential		$	17,340			$	(66	)		$	10,094			$	(143	)
Commercial			3,794				(25	)			29,754				(361	)
U.S. Treasury securities			80				—				—				—
Total		$	21,214			$	(91	)		$	39,848			$	(504	)

		Held-to-Maturity
		December 31, 2019
		Less than 12 Months								12 Months or More
		Fair Value				Unrealized Losses				Fair Value				Unrealized Losses
		(Dollars in Thousands)
Mortgage-backed securities:
Commercial		$	685			$	—			$	6,405			$	(46	)
Obligations of U.S. government-sponsored agencies			846				(4	)			2,994				(6	)
Total		$	1,531			$	(4	)		$	9,399			$	(52	)

		Available-for-Sale
		December 31, 2018
		Less than 12 Months								12 Months or More
		Fair Value				Unrealized Losses				Fair Value				Unrealized Losses
		(Dollars in Thousands)
Mortgage-backed securities:
Residential		$	9,417			$	(87	)		$	53,507			$	(1,430	)
Commercial			461				(3	)			53,430				(1,819	)
Obligations of states and political subdivisions			879				(2	)			420				(2	)
U.S. Treasury securities			79				—				—				—
Total		$	10,836			$	(92	)		$	107,357			$	(3,251	)

		Held-to-Maturity
		December 31, 2018
		Less than 12 Months								12 Months or More
		Fair Value				Unrealized Losses				Fair Value				Unrealized Losses
		(Dollars in Thousands)
Mortgage-backed securities:
Commercial		$	—			$	—			$	11,367			$	(349	)
Obligations of U.S. government-sponsored agencies			—				—				7,782				(244	)
Obligations of states and political subdivisions			770				—				933				(17	)
Total		$	770			$	—			$	20,082			$	(610	)

X

- Definition

Tabular disclosure of investment securities available for sale and held to maturity.

+ References

No definition available.

+ Details

Name:	fusb_ScheduleOfInvestmentSecuritiesAvailableForSaleAndHeldToMaturityTableTextBlock
Namespace Prefix:	fusb_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.

+ References

No definition available.

+ Details

Name:	us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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

X

- Definition

For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27290-111563

+ Details

Name:	us-gaap_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration