Inventory

3 Months Ended

Mar. 31, 2020

Inventory Disclosure [Abstract]

Inventory

Inventory

As of March 31, 2020, December 31, 2019 and 2018, inventory is comprised of the following:

	As of March 31,		As of December 31,
	2020		2019		2018
	(Unaudited)
	(In thousands)
Raw Materials	$	24,735	$	22,578	$	20,940
Work in-progress	4,062		4,239		2,348
Total inventory	$	28,797	$	26,817	$	23,288

For the three months ended March 31, 2020, we wrote-off $1.1 million of inventories, due to excess and obsolescence. There were no write-downs of inventories to net realizable value for the three months ended March 31, 2019. For the year ended December 31, 2019, the Company wrote down $0.3 million and there were no write downs of inventory to net realizable value for the years ended December 31, 2018 and 2017.