Inventories (Tables)

6 Months Ended

Jun. 30, 2021

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories were as follows:

(U.S. Dollars, in thousands)	June 30, 2021		December 31, 2020
Raw materials	$	9,625	$	8,442
Work-in-process		15,742		12,149
Finished products		14,654		29,142
Field/consignment		41,530		34,902
Inventories	$	81,551	$	84,635