Inventories (Tables)

9 Months Ended

Sep. 30, 2019

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories were as follows:

(U.S. Dollars, in thousands)	September 30, 2019		December 31, 2018
Raw materials	$	7,760	$	8,463
Work-in-process		10,532		13,478
Finished products		62,701		54,906
Inventories	$	80,993	$	76,847