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Note 13 - Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

		2012				2011				2010

Stock option and incentive plans		$	798,929			$	587,900			$	475,835
Stock purchase plan			50,831				58,519				57,436
Stock appreciation rights			-				49,988				(45,159	)
		$	849,760			$	696,407			$	488,112

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

		December 31,
		2012								2011								2010
		Shares				Weighted Average Exercise Price				Shares				Weighted Average Exercise Price				Shares				Weighted Average Exercise Price

Outstanding, beginning			535,130			$	13.85				510,612			$	14.04				474,416			$	14.44
Granted			102,722				9.30				73,250				8.23				67,760				9.00
Exercised			(17,876	)			9.68				(36,459	)			8.30				(5,754	)			10.24
Forfeited			(11,124	)			10.57				(12,273	)			8.28				(25,810	)			9.68
Outstanding, ending			608,852				13.27				535,130				13.85				510,612				14.04

Exercisable, ending			391,378								355,398								321,336


Weighted average fair value per option of options granted during the period		$	2.79							$	2.74							$	2.89

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

		Options Outstanding
						Weighted								Options Exercisable
Range of Exercise Prices		Number Outstanding				Average Remaining Contractual Life				Weighted Average Exercise Price				Number Exercisable				Weighted Average Exercise Price

$7.72 to $8.93			65,530				7.90			$	8.10				16,730			$	8.22
$9.00 to $11.64			239,692				7.75				9.21				78,098				9.19
$13.25 to $16.85			157,205				4.68				15.94				150,125				15.96
$17.00 to $18.60			49,840				2.73				18.06				49,840				18.06
$18.67 to $20.90			67,885				2.16				19.48				67,885				19.48
$21.00 to $22.00			28,700				2.16				21.28				28,700				21.28
			608,852												391,378

Schedule of Share-based Compensation, Employee Stock Purchase Plan, Activity [Table Text Block]

		2012				2011				2010

Shares granted			29,671				34,860				31,718
Shares purchased			31,554				36,174				28,907
Weighted average fair value per share granted		$	1.71			$	1.68			$	1.81

Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate.

+ References+ Details

Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

+ References+ Details