Stock Options (Tables)

12 Months Ended

Dec. 31, 2012

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity

Following is a summary of activity in the Restricted Stock Units for the periods indicated:

	2012				2011				2010
	Shares		Exercise    Price*		Shares		Exercise    Price*		Shares		Exercise    Price*
Options outstanding at beginning of year	19,750		$	22.96	9,000		$	15.86	8,000		$	11.45
Granted	—		—		13,500		26.08		3,000		24.69
Exercised	(6,125	)	21.13		(2,750	)	15.06		(2,000	)	11.45
Cancelled	(2,250	)	21.45		—		—		—		—
Options outstanding at end of year	11,375		24.24		19,750		22.96		9,000		15.86

Qualified Stock Options

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Stock Options, Activity

Following is a summary of activity in the Incentive Stock Option Plans for the periods indicated:

	2012				2011				2010
	Shares		Exercise    Price*		Shares		Exercise    Price*		Shares		Exercise    Price*
Options outstanding at beginning of year	377,480		$	19.27	360,130		$	18.29	345,480		$	18.73
Granted	61,000		32.76		35,000		26.45		19,000		24.69
Exercised	(99,650	)	19.26		(15,650	)	12.03		(4,350	)	12.98
Canceled	(8,100	)	17.20		(2,000	)	24.69		—		—
Options outstanding at end of year	330,730		21.82		377,480		19.27		360,130		18.29
Options exercisable at end of year	192,830		$	19.48	243,180		$	19.32	209,530		$	18.86
Options available for grant at end of year	109,600				162,500				195,500

*Weighted Averages

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

Options outstanding and exercisable at December 31, 2012 were as follows:

Qualified Stock Options	Options Outstanding				Options Exercisable
	Shares	Remaining Contractual Life (yrs)*	Exercise          Price*		Shares	Exercise      Price*
Range of Exercise Price
$11.45 - $17.85	104,480	4.85	$	12.39	69,480	$	12.87
$19.79 - $26.45	226,250	6.97	$	26.17	123,350	$	23.21
Total	330,730				192,830

*Weighted Averages

Non Qualified Options

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Stock Options, Activity

Following is a summary of activity in the Non-Qualified Stock Option Plans for the periods indicated:

	2012				2011				2010
	Shares		Exercise    Price*		Shares		Exercise    Price*		Shares		Exercise    Price*
Options outstanding at beginning of year	112,800		$	18.62	102,400		$	15.62	186,000		$	14.57
Granted	—		—		30,000		26.45		—		—
Exercised	(23,100	)	13.62		(14,600	)	11.45		(78,600	)	12.52
Cancelled	—		—		(5,000	)	25.18		(5,000	)	25.18
Options outstanding at end of year	89,700		19.91		112,800		18.62		102,400		15.62
Options exercisable at end of year	38,100		$	21.91	37,400		$	19.57	30,300		$	20.79
Options available for grant at end of year	322,750				320,500				364,000

*Weighted Averages

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

Options outstanding and exercisable as of December 31, 2012 were as follows:

Non-Qualified Stock Options	Options Outstanding				Options Exercisable
	Shares	Remaining    Contractual    Life(yrs)*	Exercise           Price*		Shares	Exercise      Price*
Range of Exercise Price
$11.45 - $12.10	37,200	7.00	$	11.45	9,600	$	11.45
$13.96 - $19.79	—	—	—		—	—
$25.02 - $26.45	52,500	7.24	$	25.90	28,500	$	25.43
Total	89,700				38,100

*Weighted Averages