Cash and Cash Equivalents and Restricted Cash (Tables)

12 Months Ended

Dec. 31, 2017

Cash and Cash Equivalents [Abstract]

Schedule of Cash and Cash Equivalents

Cash and cash equivalents were held in the following geographic regions:

	December 31,
(In thousands)	2017		2016
United States	$	10,489	$	3,277
People's Republic of China ("PRC")	23,283		22,142
Asia (excluding the PRC)	1,405		5,260
Europe	18,071		19,630
South America	9,190		302
Total cash and cash equivalents	$	62,438	$	50,611