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Note 5 - Inventories | 12 Months Ended
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Dec. 31, 2018
Notes to Financial Statements |
Inventory Disclosure [Text Block] |
( 5 ) | Inventories
Inventories are stated at the lower of cost or net realizable value using the average cost method. Inventories consist of the following (in thousands):
|  | December 31, |
|  | 2018 |  |  | 2017 |
Raw materials |  | $ | 79 |  |  | $ | 70 |
Work in process |  |  | 39 |  |  |  | 92 |
Finished goods |  |  | 23 |  |  |  | 29 |
Total |  | $ | 141 |  |  | $ | 191 |
Write downs for excess or expired inventory are based on management’s estimates of forecasted usage of inventories and are included in cost of goods sold. A significant change in the timing or level of demand for certain products as compared to forecasted amounts may result in recording additional write downs for excess or expired inventory in the future. Charges to cost of goods sold for inventory write-downs, reserve adjustments, scrap, shrinkage and expired inventories totaled approximately $12,000, $33,000 and $52,000 for the years ended December 31, 2018, 2017 and 2016, respectively.

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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