Inventories (Tables)

9 Months Ended

Sep. 30, 2015

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories were as follows:

(U.S. Dollars, in thousands)	September 30, 2015		December 31, 2014
Raw materials	$	3,344	$	3,879
Work-in-process		5,156		4,830
Finished products		44,691		45,612
Deferred cost of sales		4,575		5,525
Total inventory	$	57,766	$	59,846