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Inventory - Note 4 | 12 Months Ended
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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.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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