Inventories

3 Months Ended

Mar. 31, 2020

Inventory Disclosure [Abstract]

Inventories

4. Inventories

Inventories were as follows:

(U.S. Dollars, in thousands)	March 31, 2020		December 31, 2019
Raw materials	$	7,479	$	9,587
Work-in-process		10,618		14,027
Finished products		35,242		20,712
Field/consignment		29,405		38,071
Inventories	$	82,744	$	82,397