Geographic Information

12 Months Ended

Dec. 31, 2011

Segment Reporting [Abstract]

Geographic Information

20. Geographic Information

The following is a summary of revenue for the years ended December 31, 2011, 2010 and 2009, based on physical location of the subsidiary making the sale:

	2011				2010				2009
	Product and				Product and
	service and licensed		Research and		service and licensed		Research and		Product and		Research and
	technology		development		technology		development		service		development
	revenue		contract revenue		revenue		contract revenue		revenue		contract revenue
United States	$	23,739,828	$	3,886,114	$	15,740,087	$	3,463,508	$	4,683,627	$	7,269,404
Canada	-		-		134,692		134,362		149,146		190,379
Total	$	23,739,828	$	3,886,114	$	15,874,779	$	3,597,870	$	4,832,773	$	7,459,783

Long-lived assets, representing the sum of net book value of property, plant, and equipment plus intangible assets, goodwill and other assets, based on physical location as of December 31, 2011 and 2010, are as follows:

	2011		2010
United States	$	11,561,840	$	13,839,370
Canada	4,599,636		6,133,894
Total	$	16,161,476	$	19,973,264