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Securities (Tables)

3 Months Ended

Mar. 31, 2018

Securities [Abstract]

Book values and approximate fair values of investment securities

The book values and approximate fair values of investment securities at March 31, 2018 and December 31, 2017 are summarized as follows:

		March 31, 2018																December 31, 2017
		Amortized				Fair				Unrealized								Amortized				Fair				Unrealized
($ in thousands)		Cost				Value				Gains				(Losses)				Cost				Value				Gains				(Losses)
Securities available for sale:
Government-sponsored enterprise securities		$	19,000				18,604				—				(396	)			14,000				13,867				—				(133	)
Mortgage-backed securities			297,720				288,924				62				(8,858	)			297,690				295,213				246				(2,722	)
Corporate bonds			33,782				33,473				132				(441	)			33,792				34,190				512				(114	)
Total available for sale		$	350,502				341,001				194				(9,695	)			345,482				343,270				758				(2,969	)
Securities held to maturity:
Mortgage-backed securities		$	60,784				59,017				—				(1,767	)			63,829				63,092				—				(737	)
State and local governments			51,274				52,184				975				(65	)			54,674				55,906				1,280				(48	)
Total held to maturity		$	112,058				111,201				975				(1,832	)			118,503				118,998				1,280				(785	)

Schedule of information regarding securities with unrealized losses

The following table presents information regarding securities with unrealized losses at March 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		$	15,673				326				2,930				70				18,603				396
Mortgage-backed securities			222,384				6,583				117,509				4,042				339,893				10,625
Corporate bonds			24,852				376				935				65				25,787				441
State and local governments			9,545				65				—				—				9,545				65
Total temporarily impaired securities		$	272,454				7,350				121,374				4,177				393,828				11,527

The following table presents information regarding securities with unrealized losses at December 31, 2017:

($ 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		$	10,897				103				2,970				30				13,867				133
Mortgage-backed securities			192,702				1,582				125,060				1,877				317,762				3,459
Corporate bonds			2,500				49				935				65				3,435				114
State and local governments			7,928				48				—				—				7,928				48
Total temporarily impaired securities		$	214,027				1,782				128,965				1,972				342,992				3,754

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 March 31, 2018, 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
		Amortized				Fair				Amortized				Fair
($ in thousands)		Cost				Value				Cost				Value
Securities
Due within one year		$	—				—				3,007				3,041
Due after one year but within five years			40,235				39,547				22,812				23,222
Due after five years but within ten years			7,547				7,480				20,775				21,271
Due after ten years			5,000				5,050				4,680				4,650
Mortgage-backed securities			297,720				288,924				60,784				59,017
Total securities		$	350,502				341,001				112,058				111,201

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- Definition

Schedule of investment securities which includes, but is not limited to, amortized cost basis, fair value, and gross unrealized gain (loss) values by type of security.

+ References

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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=82897076&loc=d3e27290-111563

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