Net Loss Per Share

3 Months Ended

Mar. 31, 2013

Net Loss Per Share [Abstract]

Net Loss Per Share

8.  Net Loss Per Share

Basic net loss per common share for the three months ended March 31, 2013 and 2012 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 309,000 and 11,500 outstanding stock options, 2.8 million and 3.2 million outstanding stock warrants under the treasury stock method and 11,000 and 52,000 shares issuable upon conversion of preferred stock are excluded from the diluted earnings per share calculation for the periods ended March 31, 2013 and 2012, respectively, due to their anti-dilutive effect.

(in thousands, except per share amounts)	Three Months ended March 31,
	2013			2012
BASIC AND DILUTED
Weighted average number of common shares outstanding		33,511			32,809
Number of shares for computation of net loss per share		33,511			32,809
Net loss	$	(3,570	)	$	(1,588	)
Net loss per share - basic and diluted	$	(0.11	)	$	(0.05	)