Note 11 - Stock Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	2012			2011
Weighted average fair value per option	$	2.89		$	6.40
Dividend yield	None			None
Expected volatility		90	%		94	%
Risk-free interest rate		0.83	%		1.02	%
Expected life (years)		7.10			7.10

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

	2012									2011
	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term		Aggregate Intrinsic Value		Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term		Aggregate Intrinsic Value
Outstanding at January 1,		260,730		$	33.49		7.7	$	-		252,244		$	47.56		7.5	$	-
Granted		133,332			2.88						99,999		$	8.04
Exercised
Forfeited/expired		(139,096	)	$	27.61						(91,513	)	$	44.47
Outstanding at December 31,		254,966		$	20.69		7.8	$	-		260,730		$	33.49		7.7	$	-
Exercisable at December 31,		89,254		$	50.81		5.6	$	-		134,536		$	53.44		6.2	$	-

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

Range of exercise price			Number		Weighted average remaining contractual life		Weighted average exercise price		Intrinsic Value
$2.50	-	$52.00		209,306		8.66	$	22.58	$	-
$52.01	-	$101.5		45,452		4.13		77.61		-
$101.51	-	$151.00		208		2.22		105.60		-
	Total			254,966		7.84	$	50.81	$	-

Schedule of Nonvested Share Activity [Table Text Block]

	2012					2011
	Shares			Weighted Average Grant Date Fair Value		Shares			Weighted Average Grant Date Fair Value
Non-vested shares at January 1,		126,194		$	12.24		140,638		$	31.02
Granted		133,332			2.88		99,999			8.04
Vested		(18,235	)		24.94		(102,895	)		34.25
Forfeited/Expired		(75,579	)		9.67		(11,548	)		34.29
Non-vested shares at December 31,		165,712		$	4.48		126,194		$	12.24