Share Based Payment (Tables)

6 Months Ended

Jun. 30, 2012

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

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2012		2011		2012		2011
Selling, general and administrative	$	129	$	663	$	195	$	983
Research and development		18		192		35		192
Total stock-based compensation expense	$	147	$	855	$	230	$	1,175

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

	Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding at December 31, 2011	301,634	$	18.57
Granted	506,895	$	2.92
Expired	(7,581)	$	87.00
Outstanding at June 30, 2012	800,948	$	8.02	8.93	─
Exercisable at June 30, 2012	279,473	$	17.53	7.53	─

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

	2012	2011
Expected volatility	84.4%	77.4%
Risk-free interest rate	1.1%	2.0%
Dividend yield	─	─
Expected life in years	5.96	5.25
Weighted average grant date fair value	$2.07	$3.66

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

	Shares	Weighted Average Grant Date Fair Value		Aggregate Intrinsic Value
Non-vested share units at December 31, 2011	25,238	$	5.64
Granted	172,147	$	2.91
Vested	(9,481)	$	6.17
Forfeited	(920)	$	6.17
Non-vested share units at June 30, 2012	186,984	$	3.10	─