Note 13 - Stock Option Plan (Tables)

12 Months Ended

Dec. 31, 2013

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

Schedule of Stock Options Roll Forward [Table Text Block]

	Number of options			Weighted average exercise price		Weighted average remaining contractual term (in years)		Aggregate intrinsic value
Outstanding at December 31, 2011		156,275		$	21.93
Exercised		(32,775	)		17.53
Forfeited		(15,275	)		23.95
Granted		20,000			21.35
Outstanding at December 31, 2012		128,225			22.72
Exercised		(29,825	)		20.23
Forfeited		(2,600	)		19.79
Granted		20,000			23.20
Outstanding at December 31, 2013		115,800		$	23.51		1.92	$	431
Exercisable at December 31, 2013		57,800		$	25.38		0.72	$	219

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block]

	Options outstanding		Exercise price		Remaining life (in years)		Options exercisable		Exercise price
		11,250	$	17.15		0.05		11,250	$	17.15
		13,750		17.25		1.13		13,750		17.25
		3,000		19.76		1.69		3,000		19.76
		16,200		20.00		2.07		-		-
		19,300		21.35		3.07		-		-
		2,500		22.11		2.66		-		-
		20,000		23.20		4.06		-		-
		14,800		32.35		1.05		14,800		32.35
		15,000		33.25		0.32		15,000		33.25
Outstanding at December 31, 2013		115,800	$	23.51		1.92		57,800	$	25.38

Schedule Of Tax Benefits And Intrinsic Value Related To Exercisesd Stock Options [Table Text Block]

	2013		2012
Tax benefits related to stock options exercised	$	2	$	19
Intrinsic value of stock options exercised		91		166