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STOCK-BASED COMPENSATION PLANS (Tables)

12 Months Ended

Dec. 31, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The following weighted-average assumptions were used to determine compensation expense related to stock options in 2012, 2011 and 2010:

		2012				2011				2010
Risk-free interest rate			0.51	%			0.66	%			1.00	%
Expected dividend yield			2.89	%			2.65	%			2.56	%
Expected term			4.3 years				4.3 years				3.5 years
Expected volatility			26.4	%			29.6	%			33.0	%

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

The following tables summarize stock option activity under the Company’s plans:

Stock Options

		Years ended December 31,
		2012								2011								2010
Stock Options		Shares				Weighted Average Exercise Price				Shares				Weighted Average Exercise Price				Shares				Weighted Average Exercise Price
Outstanding at beginning of year			1,307,488			$	21.76				1,269,426			$	20.25				1,195,276			$	18.68
Granted			253,400				23.53				235,700				24.21				192,000				24.49
Exercised			(174,646	)			13.17				(122,463	)			8.95				(113,500	)			10.59
Forfeited or expired			(120,450	)			27.37				(75,175	)			24.93				(4,350	)			26.90
Outstanding at end of year			1,265,792			$	22.76				1,307,488			$	21.76				1,269,426			$	20.25
Exercisable at end of year			706,863			$	21.89				821,510			$	20.16				848,200			$	17.81
Weighted average fair market value of options granted		$	3.68							$	4.51							$	4.97

		Weighted Average Remaining Contractual Life (in Years)				Aggregate Intrinsic Value
Outstanding - December 31, 2012		3.1				$	2,022,000
Exercisable - December 31, 2012		1.8				$	2,010,000

Schedule of Nonvested Share Activity [Table Text Block]

The aggregate intrinsic value of outstanding and exercisable stock options is defined as the difference between the market value of the Company’s stock on December 31, 2012 of $23.36 and the exercise price multiplied by the number of in-the-money outstanding and exercisable stock options.

Non-vested Stock Options

Non-vested Stock Options		Number of Options				Weighted Average Exercise Price				Weighted Average Fair Value
Non-vested - December 31, 2009			349,325			$	25.93			$	5.00
Granted			192,000				24.49				4.97
Vested			(116,999	)			26.33				5.17
Forfeited			(3,100	)			26.84				5.00
Non-vested - December 31, 2010			421,226			$	25.16			$	4.94
Granted			235,700				24.21				4.51
Vested			(145,298	)			25.86				5.05
Forfeited			(25,650	)			25.62				4.91
Non-vested - December 31, 2011			485,978			$	24.46			$	4.70
Granted			253,400				23.53				3.68
Vested			(173,824	)			25.05				4.73
Forfeited			(6,625	)			24.26				4.60
Non-vested - December 31, 2012			558,929			$	23.86			$	4.23

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

The following table summarizes information about outstanding and exercisable stock options at December 31, 2012:

		Options Outstanding												Options Exercisable
Range of Exercise Prices		Number of Options Outstanding				Weighted Average Remaining Contractual Life (in Years)				Weighted Average Exercise Price				Number of Options Exercisable				Weighted Average Exercise Price
$15.46 to $18.03			318,292				1.22			$	17.15				318,292			$	17.15
$23.09 to $23.53			423,400				4.31				23.35				127,949				23.09
$24.21 to $30.67			524,100				3.37				25.69				260,622				27.09
			1,265,792				3.14			$	22.76				706,863			$	21.89

Schedule of Cash Proceeds Received from Share-based Payment Awards [Table Text Block]

The following table summarizes stock option activity for the years ended December 31:

		2012				2011				2010
		(Dollars in thousands)
Total intrinsic value of stock options exercised		$	1,704			$	1,299			$	1,443
Cash received from stock option exercises		$	2,300			$	1,096			$	1,202
Income tax benefit from the exercise of stock options		$	664			$	507			$	563
Total fair value of stock options vested		$	821			$	733			$	604

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

The following table summarizes restricted stock award activity during the years ended December 31, 2010, 2011 and 2012:

Non-vested Restricted Stock		Shares of Restricted Stock				Weighted Average Grant Date Fair Value
Non-vested - December 31, 2009			46,670			$	25.56
Issued			12,800				24.49
Vested			(22,372	)			25.40
Forfeited			(1,650	)			25.00
Non-vested - December 31, 2010			35,448			$	24.79
Issued			19,300				24.21
Vested			(16,748	)			25.91
Forfeited			-				-
Non-vested - December 31, 2011			38,000				24.47
Issued			19,600				23.53
Vested			(15,025	)			24.97
Forfeited			-				-
Non-vested - December 31, 2012			42,575			$	23.87

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Tabular disclosure of the amount of cash proceeds received from the exercise of stock options and similar instruments granted under share-based payment arrangements and the tax benefit realized from stock options exercised during the period. Disclosure may also include the intrinsic value of stock options exercised during the period.

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