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Note 3 - Inventories | 12 Months Ended
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Dec. 31, 2017
Notes to Financial Statements |
Inventory Disclosure [Text Block] | 3. Inventories Inventories consist of finished goods, raw materials and work in process and are stated at the lower of cost or market and consist of the following (in thousands):
|  | As of December 31, |
|  | 201 7 |  |  | 201 6 |
Raw materials |  | $ | 702 |  |  | $ | 1,126 |
Work-in-process |  |  | 254 |  |  |  | 296 |
Finished goods |  |  | — |  |  |  | 732 |
Inventories |  | $ | 956 |  |  | $ | 2,154 |
The Company periodically evaluates the carrying value of inventory on hand for potential excess amount over demand using the same lower of cost or market approach as that used to value the inventory. During the year ended December 31, 2017, the Company recorded an inventory impairment charge of $0.4 million, primarily for ZALVISO raw materials inventory on hand, plus related purchase commitments.

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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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