Inventory - Note 4

12 Months Ended

Dec. 31, 2017

Inventory Disclosure

Inventory - Note 4

4. INVENTORY

Inventory consists of the following (in thousands):

		December 31,
		2017		2016
Raw materials	$	53	$	999
Finished goods		4,488		234
	$	4,541	$	1,233

As of December 31, 2017, $2.2 million of materials that are not expected to be consumed during the next twelve months are classified as "other assets" on the balance sheet.

We recorded inventory write-downs of $1.0 million in 2017, $187,000 in 2016, and $287,000 in 2015.