Note 7. Net Loss per Share

6 Months Ended

Jun. 30, 2011

Earnings Per Share [Text Block]

7. NET LOSS PER SHARE

Basic net loss per share is calculated based on the net loss divided by the weighted average number of shares outstanding for the period excluding any dilutive effects of options, warrants and unvested restricted share units.  The weighted average shares outstanding used to compute net loss per share on a basic and diluted basis were 37,433,822 and 25,753,405 for the three months ended June 30, 2011 and 2010 respectively.  The weighted average shares outstanding used to compute net loss per share on a basic and diluted basis were 33,781,593 and 25,753,405 for the six months ended June 30, 2011 and 2010 respectively.  Basic net loss per share equaled the diluted loss per share for the three months and six months ended June 30, 2011 and 2010, since shares potentially issuable upon the exercise or conversion of the following securities have been excluded from the calculation of diluted loss per share because their effect was anti-dilutive:

	Three Months Ended June 30,				Six Months Ended June 30,
	2011		2010		2011		2010
Director and employee stock options		2,062,350		1,876,766		2,062,350		1,876,766
Non-employee director restricted share units		231,584		226,696		231,584		226,696
Warrants		6,868,342		3,838,918		6,868,342		3,838,918