Investments (Tables)

9 Months Ended

Sep. 30, 2016

Investments, Debt and Equity Securities [Abstract]

Available-for-sale Securities [Table Text Block]

A summary of investment securities available-for-sale is as follows:

	As of September 30, 2016
			Gross		Gross
	Amortized		unrealized		unrealized		Estimated
(Dollars in thousands)	cost		gains		losses		fair value

U. S. treasury securities	$	6,008	$	22	$	-	$	6,030
U. S. federal agency obligations		27,188		167		(6)		27,349
Municipal obligations, tax-exempt		160,122		3,907		(181)		163,848
Municipal obligations, taxable		71,680		1,949		(1)		73,628
Agency mortgage-backed securities		91,331		1,580		(42)		92,869
Common stocks		458		544		-		1,002
Certificates of deposit		9,700		-		-		9,700
Total	$	366,487	$	8,169	$	(230)	$	374,426

	As of December 31, 2015
			Gross		Gross
	Amortized		unrealized		unrealized		Estimated
(Dollars in thousands)	cost		gains		losses		fair value

U. S. treasury securities	$	6,517	$	1	$	(1)	$	6,517
U. S. federal agency obligations		30,064		43		(187)		29,920
Municipal obligations, tax-exempt		135,341		2,671		(71)		137,941
Municipal obligations, taxable		81,999		472		(581)		81,890
Agency mortgage-backed securities		85,829		391		(235)		85,985
Common stocks		580		906		-		1,486
Certificates of deposit		9,699		-		-		9,699
Total	$	350,029	$	4,484	$	(1,075)	$	353,438

Available For Sale Securities Continuous Unrealized Loss Position Fair Value [Table Text Block]

Securities which were temporarily impaired are shown below, along with the length of time in a continuous unrealized loss position.

			As of September 30, 2016
(Dollars in thousands)			Less than 12 months				12 months or longer				Total
	No. of		Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	securities		value		losses		value		losses		value		losses
U.S. federal agency obligations		3	$	6,198	$	(6)	$	-	$	-	$	6,198	$	(6)
Municipal obligations, tax-exempt		78		27,441		(181)		-		-		27,441		(181)
Municipal obligations, taxable		2		567		(1)		-		-		567		(1)
Agency mortgage-backed securities		19		10,936		(42)		-		-		10,936		(42)
Total		102	$	45,142	$	(230)	$	-	$	-	$	45,142	$	(230)

			As of December 31, 2015
(Dollars in thousands)			Less than 12 months				12 months or longer				Total
	No. of		Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	securities		value		losses		value		losses		value		losses
U.S. treasury securities		2	$	3,542	$	(1)	$	-	$	-	$	3,542	$	(1)
U. S. federal agency obligations		18		23,015		(163)		1,976		(24)		24,991		(187)
Municipal obligations, tax-exempt		47		11,328		(53)		2,132		(18)		13,460		(71)
Municipal obligations, taxable		105		38,605		(494)		5,068		(87)		43,673		(581)
Agency mortgage-backed securities		40		29,814		(166)		2,925		(69)		32,739		(235)
Total		212	$	106,304	$	(877)	$	12,101	$	(198)	$	118,405	$	(1,075)

Investments Classified by Contractual Maturity Date [Table Text Block]

The table below of the amortized cost and estimated fair value of investment securities includes scheduled principal payments and estimated prepayments, based on observable market inputs, for agency mortgage-backed securities. Actual maturities will differ from contractual maturities because borrowers have the right to prepay obligations with or without prepayment penalties. The amortized cost and fair value of investment securities at September 30, 2016 are as follows:

(Dollars in thousands)	Amortized		Estimated
	cost		fair value
Due in less than one year	$	25,963	$	26,067
Due after one year but within five years		182,604		184,791
Due after five years but within ten years		89,280		92,434
Due after ten years		68,182		70,132
Common stocks		458		1,002
Total	$	366,487	$	374,426

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

Sales proceeds and gross realized gains and losses on sales of available-for-sale securities are as follows for the periods indicated:

(Dollars in thousands)	Three months ended				Nine months ended
	September 30,				September 30,
	2016		2015		2016		2015

Sales proceeds	$	708	$	11,541	$	14,326	$	30,610

Realized gains	$	261	$	206	$	573	$	230
Realized losses		-		(71)		(15)		(349)
Net realized gains (losses)	$	261	$	135	$	558	$	(119)

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

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