Accrued Liabilities (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Accrued Liabilities

Accrued liabilities consist of the following:

	March 31, 2013		December 31, 2012
Employee compensation	$	2,559,183	$	3,634,839
Royalty and license fees		968,716		1,459,680
Contingent consideration		1,092,821		1,376,877
Unearned revenue		550,498		599,120
Professional fees		332,792		418,800
VAT liabilities		186,180		98,162
Research and development		32,585		18,300
Other accrued expenses		1,271,030		692,212
Total		6,993,805		8,297,990