Prepaid Expenses (Tables)

12 Months Ended

Dec. 31, 2016

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]

Prepaid expenses were as follows:

	December 31,
	2016		2015
	(In thousands)
Prepaid insurance	$	2,270	$	1,339
Prepaid inventories	1,206		1,493
Prepaid income taxes	407		—
Other	2,538		1,301
Prepaid expenses	$	6,421	$	4,133