Note 11 - Share-Based Payments (Tables)

6 Months Ended

Jun. 30, 2013

Note 11 - Share-Based Payments (Tables) [Line Items]

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
	(in $000s)				(in $000s)
Selling, general and administrative	$	30	$	130	$	66	$	317
Research and development		11		29		22		87
Stock-based compensation expense before income taxes		41		159		88		404
Benefit for income taxes (1)		—		—		—		—
Net compensation expense	$	41	$	159	$	88	$	404

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

	Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value
Options outstanding at December 31, 2012		2,530,864		$	3.94		6.45	$	—
Granted		—			—
Exercised		—			—
Forfeited		(44,375	)		4.62
Expired		(208,500	)		2.78
Options outstanding at June 30, 2013		2,277,989		$	4.04		5.84	$	—
Vested or expected to vest at June 30, 2013		2,258,030		$	4.06		5.74	$	—
Options exercisable at June 30, 2013		2,078,401		$	4.30		5.74	$	—

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

	Restricted Stock Units			Weighted Average Grant Date Value Per Share
Nonvested at December 31, 2012		405,000		$	0.16
Granted		—			—
Vested		(405,000	)		0.16
Forfeited		—			—
Nonvested at June 30, 2013		—		$	—

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

	Options			Weighted Average Exercise Price
Warrants outstanding at December 31, 2012		25,115,796		$	1.64
Issued		—			—
Exercised		—			—
Expired		(3,396,882	)		3.07
Warrants outstanding at June 30, 2013		21,718,914		$	1.42

Employee Stock Option [Member]

Note 11 - Share-Based Payments (Tables) [Line Items]

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

	Six Months Ended June 30,
	2013	2012
Expected volatility	n/a	110%
Risk free interest rate	n/a	0.89%
Dividend yield	n/a	—
Expected life (Years)	n/a	5