Note 7 - Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

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

	For the Year Ended December 31,
	2012		2011		2010
Stock options	$	(66)	$	2,077	$	4,170
Restricted stock units		1,314		672		9
Deferred directors fees		58		61		95
Total stock-based compensation expense		1,306		2,810		4,274
Tax benefit of stock-based compensation expense		(472)		(959)		(1,412)
After-tax effect of stock based compensation	$	834	$	1,851	$	2,862

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Method Used

	2012			2011			2010
Expected dividend yield		0.00	%		0.00	%		0.00	%
Risk-free interest rate		0.67	%		1.80	%		1.74	%
Expected volatility		58.6	%		57.2	%		67.7	%
Expected life of option (years)		4.8			5.0			5.5

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

	2012					2011					2010
	Number of Options			Weighted- Average Exercise Price		Number of Options			Weighted- Average Exercise Price		Number of Options			Weighted- Average Exercise Price
Outstanding at beginning of year		1,902,000		$	11.51		2,856,125		$	14.68		3,051,125		$	15.28
Granted		70,000			3.55		60,000			8.16		110,000			5.71
Exchanged for RSUs		-			-		(814,500	)		22.06		-			-
Exercised		-			-		(81,500	)		4.61		(1,500	)		6.35
Expired or forfeited		(58,000	)		6.33		(118,125	)		18.48		(303,500	)		17.51
Outstanding at end of year		1,914,000		$	11.38		1,902,000		$	11.51		2,856,125		$	14.68
Exercisable at end of year		1,833,500		$	11.48		1,718,062		$	11.72		2,277,625		$	14.98
Weighted-average fair value of options granted during the year				$	1.72				$	4.08				$	3.38

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

Options Outstanding									Options Exercisable
Range of Exercise Prices			Number of Options		Weighted-Average Remaining Contractual Life (years)		Weighted- Average Exercise Price		Number of Options		Weighted-Average Exercise Price
$2.76	-	$5.51		479,000		3.4	$	4.36		479,000	$	4.36
$5.52	-	$11.03		825,875		5.0		8.88		745,375		8.85
$11.04	-	$22.06		272,250		3.2		14.63		272,250		14.63
$22.07	-	$27.57		336,875		4.1		24.86		336,875		24.86
$2.76	-	$27.57		1,914,000		4.2	$	11.38		1,833,500	$	11.48

Schedule of Nonvested Share Activity [Table Text Block]

	Non-Vested Stock Options Outstanding			Weighted-Average Grant Date Fair Value
Outstanding on January 1, 2012		183,938		$	5.56
Granted		70,000			1.72
Vested		(172,688	)		3.70
Exchanged for RSUs		-			-
Forfeited		(750	)		5.18
Outstanding on December 31, 2012		80,500			5.35

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

	Shares			Weighted Average Grant Date Fair Value
Unvested restricted stock units at January 1, 2010		-		$	0.00
Granted		149,000			8.63
Unvested restricted units at December 31, 2010		149,000			8.63
Granted		80,000			9.14
Converted from stock options		267,372			6.53
Forfeited		(9,207	)		6.76
Vested		-			-
Unvested restricted stock units at December 31, 2011		487,165			7.59
Granted		349,000			4.82
Forfeited		(11,891	)		7.15
Vested		(72,250	)		8.63
Unvested restricted stock units at December 31, 2012		752,024			6.21

Additional Information [Member]

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

	Number of Options			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term		Aggregate Intrinsic Value
Outstanding on January 1, 2012		1,902,000			11.51
Granted		70,000			3.55
Exercised		-
Expired or forfeited		(58,000	)		6.33
Outstanding on December 31, 2012		1,914,000			11.38		4.20	$	85
Exercisable on December 31, 2012		1,833,500			11.48		4.09	$	85