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Securities (Tables)

12 Months Ended

Dec. 31, 2019

Investments, Debt and Equity Securities [Abstract]

Book values and approximate fair values of investment securities

The book values and approximate fair values of investment securities at December 31, 2019 and 2018 are summarized as follows:

	2019													2018
	Amortized Cost				Fair Value			Unrealized						Amortized Cost			Fair Value			Unrealized
($ in thousands)								Gains			(Losses)									Gains			(Losses)
Securities available for sale:
Government-sponsored enterprise securities	$	20,000			20,009			17			(8	)		82,995			82,662			63			(396	)
Mortgage-backed securities	758,491				767,285			9,463			(669	)		396,995			385,551			39			(11,483	)
Corporate bonds	33,711				34,651			1,025			(85	)		33,751			33,138			76			(689	)
Total available for sale	812,202				821,945			10,505			(762	)		513,741			501,351			178			(12,568	)
Securities held to maturity:
Mortgage-backed securities	41,423				41,542			125			(6	)		52,048			50,241			—			(1,807	)
State and local governments	26,509				26,791			285			(3	)		49,189			49,665			525			(49	)
Total held to maturity	$	67,932			68,333			410			(9	)		101,237			99,906			525			(1,856	)

Schedule of information regarding securities with unrealized losses

The following table presents information regarding securities with unrealized losses at December 31, 2019:

($ in thousands)	Securities in an Unrealized Loss Position for Less than 12 Months							Securities in an Unrealized Loss Position for More than 12 Months						Total
	Fair Value				Unrealized Losses			Fair Value			Unrealized Losses			Fair Value			Unrealized Losses
Government-sponsored enterprise securities	$	4,992			8			—			—			4,992			8
Mortgage-backed securities	77,274				293			50,851			382			128,125			675
Corporate bonds	—				—			915			85			915			85
State and local governments	—				—			934			3			934			3
Total temporarily impaired securities	$	82,266			301			52,700			470			134,966			771

The following table presents information regarding securities with unrealized losses at December 31, 2018:

($ in thousands)	Securities in an Unrealized Loss Position for Less than 12 Months							Securities in an Unrealized Loss Position for More than 12 Months						Total
	Fair Value				Unrealized Losses			Fair Value			Unrealized Losses			Fair Value			Unrealized Losses
Government-sponsored enterprise securities	$	4,921			78			13,682			318			18,603			396
Mortgage-backed securities	82,525				351			294,305			12,939			376,830			13,290
Corporate bonds	20,704				433			5,817			256			26,521			689
State and local governments	595				1			6,641			48			7,236			49
Total temporarily impaired securities	$	108,745			863			320,445			13,561			429,190			14,424

Schedule of book values and approximate fair values of investment securities by contractual maturity

The book values and approximate fair values of investment securities at December 31, 2019, by contractual maturity, are summarized in the table below. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.

	Securities Available for Sale							Securities Held to Maturity
($ in thousands)	Amortized Cost				Fair Value			Amortized Cost				Fair Value
Debt securities
Due within one year	$	—			—			$	1,165			1,167
Due after one year but within five years	43,711				44,616			17,909				18,123
Due after five years but within ten years	5,000				4,992			6,923				6,984
Due after ten years	5,000				5,052			512				517
Mortgage-backed securities	758,491				767,285			41,423				41,542
Total securities	$	812,202			821,945			$	67,932			68,333

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- Definition

Tabular disclosure of realized and unrealized gain (loss) on investment in security.

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- Definition

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

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- 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

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