Investment Securities (Tables)

12 Months Ended

Dec. 31, 2017

Investments Debt And Equity Securities [Abstract]

Summary of Investment Securities Available-for-Sale

The following is a summary of investment securities available-for-sale:

	(Amounts in thousands)
December 31, 2017	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
U.S. Government agencies and corporations	$	3,344	$	1	$	140	$	3,205
Obligations of states and political subdivisions		71,700		740		324		72,116
U.S. Government-sponsored mortgage-backed securities		69,066		6		1,404		67,668
U.S. Government-sponsored collateralized mortgage obligations		6,463		—		161		6,302
U.S. Government-guaranteed small business administration pools		9,911		—		256		9,655
Trust preferred securities		1,618		—		723		895
Total debt securities		162,102		747		3,008		159,841
Federal Home Loan Bank (FHLB) stock		2,355		—		—		2,355
Federal Reserve Bank (FRB) stock		226		—		—		226
Total regulatory stock		2,581		—		—		2,581
Total investment securities available-for-sale	$	164,683	$	747	$	3,008	$	162,422

	(Amounts in thousands)
December 31, 2016	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
U.S. Government agencies and corporations	$	8,165	$	3	$	180	$	7,988
Obligations of states and political subdivisions		68,219		582		2,031		66,770
U.S. Government-sponsored mortgage-backed securities		81,281		32		1,546		79,767
U.S. Government-sponsored collateralized mortgage obligations		9,504		—		155		9,349
U.S. Government-guaranteed small business administration pools		12,255		1		317		11,939
Trust preferred securities		1,620		—		795		825
Total debt securities		181,044		618		5,024		176,638
Federal Home Loan Bank (FHLB) stock		2,355		—		—		2,355
Federal Reserve Bank (FRB) stock		226		—		—		226
Total regulatory stock		2,581		—		—		2,581
Total investment securities available-for-sale	$	183,625	$	618	$	5,024	$	179,219

Summary of Realized and Unrealized Gains and Losses on Trading Securities

	(Amounts in thousands)
	2016			2015
Unrealized gains		—		$	7
Unrealized losses		—			(3	)
Net unrealized gains		—			4
Net realized losses		(47	)		(15	)
Trading securities losses, net	$	(47	)	$	(11	)

Amortized Cost and Fair Value of Debt Securities by Contractual Maturity

The amortized cost and fair value of debt securities at December 31, 2017, by contractual maturity, are shown below. Actual maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.

	(Amounts in thousands)
	Amortized Cost		Fair Value
Due in one year or less	$	10	$	10
Due after one year through five years		860		894
Due after five years through ten years		8,437		8,315
Due after ten years		77,266		76,652
Total		86,573		85,871
U.S. Government-sponsored mortgage-backed and related securities		75,529		73,970
Total debt securities	$	162,102	$	159,841

Proceeds and Gains or Losses Realized on Available for Sale Securities Sold or Called

The following table sets forth the proceeds, gains and losses realized on securities sold or called for each of the years ended December 31:

	(Amounts in thousands)
	2017		2016		2015
Proceeds on securities sold	$	44,801	$	50,862	$	12,291
Gross realized gains		524		725		135
Gross realized losses		517		259		60

Fair Value of Securities with Unrealized Losses and an Aging of those Unrealized Losses

The following is a summary of the fair value of securities with unrealized losses and an aging of those unrealized losses at December 31, 2017:

	(Amounts in thousands)
	Less than 12 Months				12 Months or More				Total
	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
U.S. Government agencies and corporations	$	—	$	—	$	2,860	$	140	$	2,860	$	140
Obligations of states and political subdivisions		7,430		24		18,066		300		25,496		324
U.S. Government-sponsored mortgage-backed    securities		24,888		241		40,968		1,163		65,856		1,404
U.S. Government-sponsored collateralized    mortgage obligations		—		—		6,302		161		6,302		161
U.S. Government-guaranteed small business    administration pools		2,532		38		7,123		218		9,655		256
Trust preferred securities		—		—		895		723		895		723
Total	$	34,850	$	303	$	76,214	$	2,705	$	111,064	$	3,008

The above table represents 83 investment securities where the fair value is less than the related amortized cost.

The following is a summary of the fair value of securities with unrealized losses and an aging of those unrealized losses at December 31, 2016:

	(Amounts in thousands)
	Less than 12 Months				12 Months or More				Total
	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
U.S. Government agencies and corporations	$	7,643	$	180	$	—	$	—	$	7,643	$	180
Obligations of states and political subdivisions		41,668		2,031		—		—		41,668		2,031
U.S. Government-sponsored mortgage-backed    securities		68,386		1,487		2,044		59		70,430		1,546
U.S. Government-sponsored collateralized    mortgage obligations		9,350		155		—		—		9,350		155
U.S. Government-guaranteed small business    administration pools		8,757		317		—		—		8,757		317
Trust preferred securities		—		—		825		795		825		795
Total	$	135,804	$	4,170	$	2,869	$	854	$	138,673	$	5,024

Other than Temporary Impairment Credit Losses Recognized in Earnings

The following provides a cumulative roll forward of credit losses recognized in earnings for trust preferred securities held for the years ended:

	(Amounts in thousands)
	December 31,
	2017		2016		2015
Beginning balance	$	140	$	140	$	140
Reduction for debt securities for which other-than-temporary impairment has    been previously recognized and there is no related other comprehensive    income		—		—		—
Credit losses on debt securities for which other-than-temporary impairment    has not been previously recognized		—		—		—
Additional credit losses on debt securities for which other-than-temporary    impairment was previously recognized		—		—		—
Sale of debt securities						—
Ending balance	$	140	$	140	$	140