Accrued Expenses Schedule of Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2011

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities [Table Text Block]

Accrued expenses at December 31, 2011 and 2010, consisted of the following (in thousands):

	2011		2010
Payroll taxes	$	1,786	$	1,234
Payroll	2,075		3,708
Bonuses	2,736		2,387
Commissions	912		818
Vacation	4,362		3,792
Royalties	1,310		1,104
Value-added tax	1,018		874
Other accrued expenses	5,998		4,973
Total	$	20,197	$	18,890