INVESTMENTS (Tables)

12 Months Ended

Dec. 31, 2016

Amortized cost and Estimated fair values of Investments Available-for-sale

			2016								2015
					Gross		Gross		Estimated				Gross		Gross		Estimated
			Amortized		Unrealized		Unrealized		Fair		Amortized		Unrealized		Unrealized		Fair
(In thousands)			Cost		Gains		Losses		Value		Cost		Gains		Losses		Value
U.S. government agencies			$	124,314	$	32	$	(2,556)	$	121,790	$	109,602	$	132	$	(1,334)	$	108,400
State and municipal				281,090		7,180		(586)		287,684		156,402		8,305		-		164,707
Mortgage-backed				314,029		2,851		(4,169)		312,711		312,846		6,396		(2,546)		316,696
Corporate debt				9,100		34		-		9,134		-		-		-		-
Trust preferred				1,089		-		(77)		1,012		1,089		-		(66)		1,023
	Total debt securities			729,622		10,097		(7,388)		732,331		579,939		14,833		(3,946)		590,826
Marketable equity securities				1,223		-		-		1,223		1,223		-		-		1,223
		Total investments available-for-sale	$	730,845	$	10,097	$	(7,388)	$	733,554	$	581,162	$	14,833	$	(3,946)	$	592,049

Activity of OTTI on investment Securities Due to Credit Losses Recognized in Earnings

(In thousands)		OTTI Losses
Cumulative credit losses on investment securities, through December 31, 2014	$	531
Additions for credit losses not previously recognized		-
Cumulative credit losses on investment securities, through December 31, 2015		531
Additions for credit losses not previously recognized		-
Cumulative credit losses on investment securities, through December 31, 2016	$	531

Gross Unrealized Losses and Fair Value by Length of Time

		2016
						Continuous Unrealized
						Losses Existing for:
		Number								Total
		of				Less than		More than		Unrealized
(Dollars in thousands)		securities		Fair Value		12 months		12 months		Losses
U.S. government agencies			12	$	96,788	$	2,556	$	-	$	2,556
State and municipal			53		48,010		516		70		586
Mortgage-backed			37		212,844		3,971		198		4,169
Trust preferred			1		1,012		-		77		77
	Total		103	$	358,654	$	7,043	$	345	$	7,388

		2015
						Continuous Unrealized
						Losses Existing for:
		Number								Total
		of				Less than		More than		Unrealized
(Dollars in thousands)		securities		Fair Value		12 months		12 months		Losses
U.S. government agencies			7	$	78,555	$	1,020	$	314	$	1,334
State and municipal			-		-		-		-		-
Mortgage-backed			26		140,556		716		1,830		2,546
Trust preferred			1		1,023		-		66		66
	Total		34	$	220,134	$	1,736	$	2,210	$	3,946

		2015
						Continuous Unrealized
						Losses Existing for:
		Number								Total
		of				Less than		More than		Unrealized
(Dollars in thousands)		securities		Fair Value		12 months		12 months		Losses
U.S. government agencies			6	$	55,727	$	456	$	277	$	733
State and municipal			11		12,369		23		125		148
	Total		17	$	68,096	$	479	$	402	$	881

Amortized Cost and Estimated Fair Values of Investment Securities

		2016				2015
				Estimated				Estimated
		Amortized		Fair		Amortized		Fair
(In thousands)		Cost		Value		Cost		Value
Due in one year or less		$	7,493	$	7,541	$	301	$	306
Due after one year through five years			156,953		162,233		157,710		160,257
Due after five years through ten years			282,468		282,713		168,136		174,677
Due after ten years			282,708		279,844		253,792		255,586
	Total debt securities available-for-sale	$	729,622	$	732,331	$	579,939	$	590,826

		2015
				Estimated
		Amortized		Fair
(In thousands)		Cost		Value
Due in one year or less		$	845	$	853
Due after one year through five years			19,217		20,041
Due after five years through ten years			163,125		165,620
Due after ten years			25,078		25,190
	Total debt securities held-to-maturity	$	208,265	$	211,704

Amortized Cost and Estimated Fair Values of Investments Held-To-Maturity

		2015
				Gross		Gross		Estimated
		Amortized		Unrealized		Unrealized		Fair
(In thousands)		Cost		Gains		Losses		Value
U.S. government agencies		$	56,460	$	-	$	(733)	$	55,727
State and municipal			149,537		4,297		(148)		153,686
Mortgage-backed			168		23		-		191
Corporate debt			2,100		-		-		2,100
	Total investments held-to-maturity	$	208,265	$	4,320	$	(881)	$	211,704

Other Equity Securities

(In thousands)		2016		2015
Federal Reserve Bank stock		$	8,334	$	8,269
Federal Home Loan Bank of Atlanta stock			37,760		33,067
	Total equity securities	$	46,094	$	41,336

Gross Realized Gains and Losses on All Investments

(In thousands)		2016		2015		2014
Gross realized gains from sales of investments available-for-sale		$	1,491	$	-	$	-
Net gains from calls of investments available-for-sale			440		18		2
Net gains from calls of investments held-to-maturity			1		18		3
	Net securities gains	$	1,932	$	36	$	5