Net Loss Per Share

12 Months Ended

Dec. 31, 2011

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

15.  Net Loss Per Share

         Basic net loss per common share for the years ended December 31, 2011 and 2010 was computed by dividing the net loss for the relevant period by the weighted average number of shares of common stock outstanding. Diluted loss per common share is computed by dividing net loss by the weighted average number of shares of common stock and common stock equivalents outstanding.

         Potential common stock equivalents of approximately 5.4 million and 5.1 million outstanding stock warrants, 55,000 and 100,000 shares issuable upon conversion of preferred stock and 0 and 0.2 million shares issuable upon conversion of notes are excluded from the diluted earnings per share calculation for the year ended December 31, 2011 and 2010, respectively, due to their anti-dilutive effect.

(in thousands, except per share amounts)	Year ended December 31,
	2011			2010
BASIC AND DILUTED
Weighted average number of
common shares outstanding		26,784			18,293
Net loss	$	(17,145	)	$	(31,626	)
Net loss per share basic and diluted	$	(0.64	)	$	(1.73	)