Accrued and Other Current Liabilities (Tables)

6 Months Ended

Jun. 30, 2013

Accrued and Other Current Liabilities

Accrued And Other Current Liabilities [Table Text Block]

Accrued and other current liabilities consisted of the following (in thousands):

	June 30,		December 31,
	2013		2012
Accrued payroll-related expenses	$	4,061	$	6,567
Accrued expenses	1,057		639
Total accrued liabilities	$	5,118	$	7,206
Patent and other assets purchased but not paid	$	550	$	1,100
Other current liabilities	1,015		713
Total other current liabilities	$	1,565	$	1,813