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Securities Available-for-Sale (Tables)

6 Months Ended

Jun. 30, 2018

Investments, Debt and Equity Securities [Abstract]

Unrealized Gain (Loss) on Investments [Table Text Block]

The following table summarizes the amortized cost and fair value of securities available-for-sale at June 30, 2018 and December 31, 2017 and the corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive income (loss).

					Gross			Gross
		Amortized			Unrealized			Unrealized				Fair
		Cost			Gains			Losses				Value
June 30, 2018		(dollars in thousands)
Investment securities available-for-sale
Federal agency obligations		$	52,588		$	20		$	(1,124	)		$	51,484
Residential mortgage pass-through securities			184,639			135			(4,671	)			180,103
Commercial mortgage pass-through securities			3,987			-			(94	)			3,893
Obligations of U.S. states and political subdivisions			125,885			1,003			(3,259	)			123,629
Corporate bonds and notes			27,802			104			(442	)			27,464
Asset-backed securities			10,889			61			(4	)			10,946
Certificates of deposit			420			4			-				424
Other securities			2,072			-			-				2,072
Total securities available-for-sale		$	408,282		$	1,327		$	(9,594	)		$	400,015
					Gross			Gross
		Amortized			Unrealized			Unrealized				Fair
		Cost			Gains			Losses				Value
December 31, 2017		(dollars in thousands)
Investment securities available-for-sale
Federal agency obligations		$	56,297		$	141		$	(416	)		$	56,022
Residential mortgage pass-through securities			183,509			330			(1,948	)			181,891
Commercial mortgage pass-through securities			4,054			3			(3	)			4,054
Obligations of U.S. states and political subdivisions			130,723			1,739			(1,334	)			131,128
Trust preferred securities			4,577			205			(111	)			4,671
Corporate bonds and notes			29,801			163			(271	)			29,693
Asset-backed securities			12,021			66			(37	)			12,050
Certificates of deposit			621			4			-				625
Equity securities			11,843			235			(350	)			11,728
Other securities			3,422			-			-				3,422
Total securities available-for-sale		$	436,868		$	2,886		$	(4,470	)		$	435,284

Investments Classified by Contractual Maturity Date [Table Text Block]

The following table presents information for investments in securities available-for-sale at June 30, 2018, based on scheduled maturities. Actual maturities can be expected to differ from scheduled maturities due to prepayment or early call options of the issuer. Securities not due at a single maturity date are shown separately.

		June 30, 2018
		Amortized			Fair
		Cost			Value
		(dollars in thousands)
Investment Securities Available-for-Sale:
Due in one year or less		$	6,817		$	6,810
Due after one year through five years			33,357			33,125
Due after five years through ten years			31,599			31,918
Due after ten years			145,811			142,094
Residential mortgage pass-through securities			184,639			180,103
Commercial mortgage pass-through securities			3,987			3,893
Other securities			2,072			2,072
Total securities available-for-sale		$	408,282		$	400,015

Schedule of Realized Gain (Loss) [Table Text Block]

Gross gains and losses from the sales, calls and maturities of securities for periods presented were as follows:

		Three Months Ended						Six Months Ended
		June 30,						June 30,
		2018			2017			2018			2017
		(dollars in thousands)
Proceeds		$	-		$	-		$	-		$	29,543
Gross gains on sales of securities			-			-			-			1,596
Gross losses on sales of securities			-			-			-			-
Net gains on sales of securities			-			-			-			1,596
Less: tax provision on net gains			-			-			-			(579	)
Net gains on sales of securities, after tax		$	-		$	-		$	-		$	1,017

Schedule of Unrealized Loss on Investments [Table Text Block]

The following tables indicate gross unrealized losses not recognized in income and fair value, aggregated by investment category and the length of time individual securities have been in a continuous unrealized loss position at June 30, 2018 and December 31, 2017:

		June 30, 2018
		Total							Less than 12 Months							12 Months or Longer
		Fair			Unrealized				Fair			Unrealized				Fair			Unrealized
		Value			Losses				Value			Losses				Value			Losses
		(dollars in thousands)
Federal agency obligation		$	47,925		$	(1,125	)		$	37,267		$	(708	)		$	10,658		$	(417	)
Residential mortgage pass-through securities			172,308			(4,672	)			113,673			(2,280	)			58,635			(2,392	)
Commercial mortgage pass-through securities			3,893			(94	)			3,893			(94	)			-			-
Obligations of U.S. states and political subdivisions			65,916			(3,258	)			30,625			(832	)			35,291			(2,426	)
Corporate bonds and notes			15,653			(441	)			11,012			(122	)			4,641			(319	)
Asset-backed securities			2,821			(4	)			924			-				1,897			(4	)
Certificates of Deposit			101			-				101			-				-			-
Total temporarily impaired securities		$	308,617		$	(9,594	)		$	197,495		$	(4,036	)		$	111,122		$	(5,558	)

		December 31, 2017
		Total							Less than 12 Months							12 Months or Longer
		Fair			Unrealized				Fair			Unrealized				Fair			Unrealized
		Value			Losses				Value			Losses				Value			Losses
		(dollars in thousands)
Investment Securities
Available-for-Sale:
Federal agency obligation		$	39,813		$	(416	)		$	28,407		$	(213	)		$	11,406		$	(203	)
Residential mortgage pass-through securities			148,574			(1,948	)			117,556			(1,146	)			31,018			(802	)
Commercial mortgage pass-through securities			1,198			(3	)			1,198			(3	)			-			-
Obligations of U.S. states and political subdivisions			57,685			(1,334	)			17,909			(246	)			39,776			(1,088	)
Trust preferred securities			1,469			(111	)			-			-				1,469			(111	)
Corporate bonds and notes			11,074			(271	)			1,965			(21	)			9,109			(250	)
Asset-backed securities			7,428			(37	)			993			(2	)			6,435			(35	)
Equity securities			11,116			(350	)			-			-				11,116			(350	)
Total Temporarily Impaired Securities		$	278,357		$	(4,470	)		$	168,028		$	(1,631	)		$	110,329		$	(2,839	)

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Tabular disclosure of the proceeds from sales of available-for-sale securities and the gross realized gains and gross realized losses that have been included in earnings as a result of those sales.

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