Loss per common share (Tables)

3 Months Ended

Mar. 31, 2013

Basic and diluted earnings per share for the three months ended March 31, 2013 and 2012, respectively, were as follows:



	2013			2012
Loss available to stockholders	$	(860,393	)	$	(438,313	)

Weighted average shares outstanding - Basic and diluted	52,851,574			52,060,614
Basic and diluted loss per share	$	(0.02	)	$	(0.01	)

Anti-dilutive shares underlying stock options outstanding	4,386,000			4,381,000
Anti-dilutive convertible debentures	303,223			636,557