Note 2. Long-Term Incentive Plans (Tables)

9 Months Ended

Sep. 30, 2012

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

	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Expected volatility		73.18	%		70.72	%		71.46	%		71.11	%
Risk-free interest rate		0.52	%		1.42	%		0.56	%		1.79	%
Expected dividend yield		0.00	%		0.00	%		0.00	%		0.00	%
Expected life (in years)		3.76			6.0			3.23			6.0
Estimated fair value per option granted	$	0.55		$	1.32		$	0.70		$	1.34

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

	Number of Options
Outstanding at January 1, 2012		3,224,879
Granted		1,498,452
Exercised		(1,667	)
Forfeited and cancelled		(399,339	)
Outstanding at September 30, 2012		4,322,325

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

	Shares
Nonvested at January 1, 2012		528,443
Granted		152,328
Vested and settled in shares		(311,014	)
Forfeited and cancelled		(10,394	)
Nonvested at September 30, 2012		359,363

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

	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
Cost of sales	$	19	$	24	$	57	$	76
Research and development		82		84		247		270
Selling, general and administrative		139		127		415		407
	$	240	$	235	$	719	$	753