Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2012

Commitments and Contingencies Disclosure [Abstract]

Schedule of Product Warranty Liability [Table Text Block]

The following is a summary of the change in the Company's warranty accrual reserve (in thousands):

	Nine Months Ended
	September 30,
	2012			2011
Warranty liability balance, beginning of the period	$	3,438		$	3,025
Product warranty accruals	3,209			2,205
Continuous Computing beginning balance	—			817
Utilization of accrual	(3,529		)	(2,345		)
Warranty liability balance, end of the period	$	3,118		$	3,702