Note 8 - Equity Plans (Tables)

6 Months Ended

Jun. 30, 2013

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

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

	Number of Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (years)	Aggregate Intrinsic Value (in thousands)
Outstanding at December 31, 2012		40,339		$	21.79
Granted		-			-
Exercised		(1,667	)		3.50
Canceled		-			-
Outstanding at June 30, 2013		38,672		$	22.58	2.5	$	251
Exercisable at June 30, 2013		38,672		$	22.58	2.5	$	251

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

	For the Three Months Ended June 30,				For the Six Months Ended June 30,
	2013		2012		2013		2012
(in thousands, except per share data)
RSU expense before taxes	$	205	$	272	$	449	$	552
RSU expense after taxes	$	120	$	163	$	283	$	335
Impact per basic share	$	0.01	$	0.01	$	0.03	$	0.03
Impact per diluted share	$	0.01	$	0.01	$	0.03	$	0.03

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

	Number of Shares		Weighted Average Granted Price		Aggregate Intrinsic Value (in thousands)
Outstanding at December 31, 2012		192,819	$	26.22
Granted		37,341		21.33
Converted into shares		-		-
Forfeited		-		-
Outstanding at June 30, 2013		230,160	$	25.43	$	251
Vested at June 30, 2013		168,808	$	26.07	$	196