Stock Option Plans And Warrants (Tables)

12 Months Ended

Dec. 31, 2011

Stock Option Plans And Warrants [Abstract]

Stock Option And Restricted Stock Units Activity

Total Options	Number of Options			Weighted- Average Exercise Price
Outstanding at January 1, 2009		1,350,252		$	28.65
Granted		200,625		$	19.94
Exercised		(59,827	)	$	14.27
Forfeited		(9,500	)	$	60.92
Outstanding at December 31, 2009		1,481,550		$	27.85
Exercisable at December 31, 2009		1,051,550		$	23.18
Outstanding at January 1, 2010		1,481,550		$	27.85
Granted		82,000		$	28.70
Exercised		(194,650	)	$	18.83
Forfeited		(28,500	)	$	38.60
Expired		(40,000	)	$	26.25
Outstanding at December 31, 2010		1,300,400		$	29.06
Exercisable at December 31, 2010		970,450		$	30.78
Outstanding at January 1, 2011		1,300,400		$	29.06
Granted		161,250		$	17.14
Exercised		(18,125	)	$	3.93
Forfeited		(27,833	)	$	28.80
Expired		(93,325	)	$	26.85
Outstanding at December 31, 2011		1,322,367		$	27.81
Exercisable at December 31, 2011		1,044,125		$	29.27

Nonvested restricted stock units	Number of Restricted Stock Units			Weighted- Average Grant Date Fair Value
Nonvested at January 1, 2009		68,555		$	51.42
Granted		25,009		$	24.89
Vested		(2,740	)	$	34.51
Forfeited		(11,750	)	$	45.00
Nonvested at December 31, 2009		79,074		$	44.63
Nonvested at January 1, 2010		79,074		$	44.63
Granted		49,752		$	27.34
Vested		(22,100	)	$	34.66
Forfeited		(27,576	)	$	46.81
Nonvested at December 31, 2010		79,150		$	35.82
Nonvested at January 1, 2011		79,150		$	35.82
Granted		125,678		$	9.82
Vested		(31,267	)	$	43.20
Forfeited		(10,604	)	$	16.61
Nonvested at December 31, 2011		162,957		$	15.15

Nonvested restricted stock	Number of Restricted Stock			Weighted- Average Grant Date Fair Value
Nonvested at January 1, 2010		0		$	0.00
Granted		46,001		$	29.84
Vested		0		$	0.00
Forfeited		0		$	0.00
Nonvested at December 31, 2010		46,001		$	29.84
Nonvested at January 1, 2011		46,001		$	29.84
Granted		47,618		$	21.01
Vested		(1,000	)	$	35.01
Forfeited		(7,501	)	$	29.73
Nonvested at December 31, 2011		85,118		$	24.85

Schedule Of Weighted-Average Assumptions

	2011			2010
Fair Value	$	7.60		$	12.57
Dividend Yield		0	%		0	%
Expected Volatility		66.1	%		68.2	%
Weighted Average Volatility		66.1	%		68.2	%
Risk Free Interest Rate		3	%		3% - 5	%
Expected Life of Options from Grant		3.2			3.2