Inventories

9 Months Ended

Sep. 30, 2021

Inventory Disclosure [Abstract]

Inventories

4. Inventories

Inventories were as follows:

(U.S. Dollars, in thousands)	September 30, 2021		December 31, 2020
Raw materials	$	7,992	$	8,442
Work-in-process		14,977		12,149
Finished products		17,164		29,142
Field/consignment		44,545		34,902
Inventories	$	84,678	$	84,635