Weighted Average Common Shares

6 Months Ended

Jun. 30, 2011

Weighted Average Number of Shares Outstanding, Diluted [Abstract]

15. Weighted Average Common Shares

Basic income per common share is computed by dividing income by the weighted average number of common shares outstanding during the period. Diluted income per common share is computed similarly to basic income per common share except that weighted average common shares are increased to include the potential issuance of dilutive common shares.

	Three Months ended June 30,				Six Months ended June 30,
	2011		2010		2011		2010
Weighted average common shares
Basic		69,088,613		46,405,227		65,524,530		45,546,894
Effect of employee stock-based awards		288,103		-		506,071		-
Effect of warrants		159,365		-		162,464		-
Diluted		69,536,081		46,405,227		66,193,065		45,546,894

Stock options to purchase 1,589,177 and 2,838,661 common shares, warrants to purchase 15,306,911 and 200,000 common shares were outstanding at June 30, 2011 and 2010, respectively, but were not included in the computation of diluted weighted average common shares outstanding because their effect would have been anti-dilutive. Also, at June 30, 2011, Compensation Options to purchase 450,000 common shares were outstanding, but were not included in the computation of diluted weighted average common shares outstanding because their effect would have been anti-dilutive.