INVESTMENT SECURITIES (Tables)

9 Months Ended

Sep. 30, 2016

Investments, Debt and Equity Securities [Abstract]

Schedule of amortized cost and related market value of investment securities available-for-sale

Investment Portfolio Composition. The amortized cost and related market value of investment securities available-for-sale and
held-to-maturity were as follows:
	September 30, 2016									December 31, 2015
	Amortized		Unrealized		Unrealized		Market		Amortized		Unrealized		Unrealized		Market
	Cost		Gains		Losses		Value		Cost		Gain		Losses		Value
Available for Sale
U.S. Government Treasury	$	272,656	$	1,029	$	-	$	273,685	$	250,458	$	101	$	213	$	250,346
U.S. Government Agency		129,150		569		203		129,516		101,730		357		263		101,824
States and Political Subdivisions		86,490		189		45		86,634		88,358		103		99		88,362
Mortgage-Backed Securities		1,340		142		-		1,482		1,742		159		-		1,901
Equity Securities(1)		8,822		-		-		8,822		8,595		-		-		8,595
Total	$	498,458	$	1,929	$	248	$	500,139	$	450,883	$	720	$	575	$	451,028
Held to Maturity
U.S. Government Treasury	$	129,323	$	530	$	-	$	129,853	$	134,554	$	45	$	160	$	134,439
U.S. Government Agency		1,904		1		-		1,905		10,043		7		5		10,045
States and Political Subdivisions		9,983		69		1		10,051		15,693		38		7		15,724
Mortgage-Backed Securities		48,718		366		64		49,020		27,602		4		407		27,199
Total	$	189,928	$	966	$	65	$	190,829	$	187,892	$	94	$	579	$	187,407
Total Investment Securities	$	688,386	$	2,895	$	313	$	690,968	$	638,775	$	814	$	1,154	$	638,435

Schedule of investment securities with maturity distribution based on contractual maturities

	Available for Sale				Held to Maturity
	Amortized		Market		Amortized		Market
(Dollars in Thousands)	Cost		Value		Cost		Value
Due in one year or less	$	146,612	$	146,872	$	60,424	$	60,503
Due after one through five years		252,653		253,644		80,786		81,305
Mortgage-Backed Securities		1,340		1,482		48,718		49,021
U.S. Government Agency		89,031		89,319		-		-
Equity Securities		8,822		8,822		-		-
Total	$	498,458	$	500,139	$	189,928	$	190,829

Schedule of investment securities with continuous unrealized loss position

	Less Than				Greater Than
	12 Months				12 Months				Total
	Market		Unrealized		Market		Unrealized		Market		Unrealized
(Dollars in Thousands)	Value		Losses		Value		Losses		Value		Losses
September 30, 2016
Available for Sale
U.S. Government Agency	$	36,793	$	153	$	10,123	$	50	$	46,916	$	203
States and Political Subdivisions		28,831		44		298		1		29,129		45
Total		65,624		197		10,421		51		76,045		248
Held to Maturity
States and Political Subdivisions		1,252		1		-		-		1,252		1
Mortgage-Backed Securities		2,095		5		7,120		59		9,215		64
Total	$	3,347	$	6	$	7,120	$	59	$	10,467	$	65
December 31, 2015
Available for Sale
U.S. Government Treasury	$	150,061	$	213	$	-	$	-	$	150,061	$	213
U.S. Government Agency		43,508		200		9,644		63		53,152		263
States and Political Subdivisions		39,608		86		5,066		13		44,674		99
Total		233,177		499		14,710		76		247,887		575
Held to Maturity
U.S. Government Treasury		92,339		160		-		-		92,339		160
U.S. Government Agency		5,006		5		-		-		5,006		5
States and Political Subdivisions		3,791		7		-		-		3,791		7
Mortgage-Backed Securities		13,267		185		11,889		222		22,156		407
Total	$	114,403	$	357	$	11,889	$	222	$	126,292	$	579