Accounts Payable and Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2016

Accounts Payable and Accrued Liabilities, Current [Abstract]

Accounts Payable and Accrued Expenses / Costs

Accounts payable and accrued expenses consist of the following at December 31, 2016 and 2015 (in thousands):



	2016		2015

Payroll and other employee benefits	$	1,593	$	576
Accrued vacation	533		701
Accrued legal expenses - patent	6,564		10,135
Foreign taxes payable ⁽¹⁾	3,150		3,960
Accrued consulting and other professional fees	1,967		1,592
Other accrued liabilities	476		383
	$	14,283	$	17,347

⁽¹⁾ - Included in "Accounts payable and accrued expenses / patent costs" line item on the consolidated statement of cash flows included elsewhere herein.