XML 23 R28.htm IDEA: XBRL DOCUMENT v2.4.0.6
Net Loss Per Common Share (Details)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Schedule of stock options and warrants    
Potential common stock equivalents 1,635,314 2,626,087
Common stock options [Member]
   
Schedule of stock options and warrants    
Potential common stock equivalents 1,435,314 2,079,306
Warrants [Member]
   
Schedule of stock options and warrants    
Potential common stock equivalents 200,000 546,781