Investment Securities (Tables)

12 Months Ended

Dec. 31, 2016

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, 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

	(Amounts in thousands)
December 31, 2015	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
U.S. Government agencies and corporations	$	12,555	$	136	$	68	$	12,623
Obligations of states and political subdivisions		50,139		1,386		120		51,405
U.S. Government-sponsored mortgage-backed securities		70,193		165		679		69,679
U.S. Government-sponsored collateralized mortgage obligations		13,665		—		135		13,530
U.S. Government-guaranteed small business administration pools		2,883		—		46		2,837
Trust preferred securities		1,640		—		862		778
Total debt securities		151,075		1,687		1,910		150,852
Federal Home Loan Bank (FHLB) stock		2,823		—		—		2,823
Federal Reserve Bank (FRB) stock		226		—		—		226
Total regulatory stock		3,049		—		—		3,049
Total investment securities available-for-sale	$	154,124	$	1,687	$	1,910	$	153,901

Summary of Realized and Unrealized Gains and Losses on Trading Securities

				(Amounts in thousands)
	2016			2015			2014
Unrealized gains	$	—		$	7		$	39
Unrealized losses		—			(3	)		(4	)
Net unrealized gains		—			4			35
Net realized (losses) gains		(47	)		(15	)		292
Trading securities (losses) gains, net	$	(47	)	$	(11	)	$	327

Amortized Cost and Fair Value of Debt Securities by Contractual Maturity

The amortized cost and fair value of debt securities at December 31, 2016, 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	$	—	$	—
Due after one year through five years		1,360		1,391
Due after five years through ten years		18,457		18,530
Due after ten years		70,442		67,601
Total		90,259		87,522
U.S. Government-sponsored mortgage-backed and related securities		90,785		89,116
Total debt securities	$	181,044	$	176,638

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)
	2016		2015		2014
Proceeds on securities sold	$	50,862	$	12,291	$	32,733
Gross realized gains		725		135		1,170
Gross realized losses		259		60		582

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, 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

The above table represents 122 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, 2015:

	(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	$	1,974	$	25	$	1,947	$	43	$	3,921	$	68
Obligations of states and political subdivisions		5,439		61		2,125		59		7,564		120
U.S. Government-sponsored mortgage-backed    securities		35,081		315		16,575		364		51,656		679
U.S. Government-sponsored collateralized    mortgage obligations		13,530		135		—		—		13,530		135
U.S. Government-guaranteed small business    administration pools		2,837		46		—		—		2,837		46
Trust preferred securities		—		—		778		862		778		862
Total	$	58,861	$	582	$	21,425	$	1,328	$	80,286	$	1,910

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,
	2016		2015		2014
Beginning balance	$	140	$	140	$	2,305
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						(2,165	)
Ending balance	$	140	$	140	$	140