Cash and Cash Equivalents (Tables)

12 Months Ended

Dec. 31, 2019

Cash and Cash Equivalents [Abstract]

Cash and Cash Equivalents by Geographic Region

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

	December 31,
(In thousands)	2019		2018
United States	$	16,751	$	1,156
People's Republic of China ("PRC")	13,700		20,885
Asia (excluding the PRC)	21,691		2,398
Europe	9,081		19,907
South America	13,079		8,861
Total cash and cash equivalents	$	74,302	$	53,207