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Inventories | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2019 | Dec. 31, 2018
Inventory Disclosure [Abstract] |  |
Inventories |
(3) | INVENTORIES
Inventories consist of the following:
(in thousands) |  | September 30, 2019 |  |  | December 31, 2018 |
Raw materials |  | $ | 351 |  |  | $ | 358 |
Work-in-process |  |  | 350 |  |  |  | 500 |
Finished goods |  |  | 35 |  |  |  | — |
Total inventories |  | $ | 736 |  |  | $ | 858 |
(5) | INVENTORIES
Inventories consist of:
(in thousands) |  | December 31, 2018 |  |  | December 31, 2017 |
Raw materials |  | $ | 358 |  |  | $ | 298 |
Work-in-process |  |  | 500 |  |  |  | 721 |
Finished goods |  |  | — |  |  |  | 229 |
Total Inventory |  | $ | 858 |  |  | $ | 1,248 |

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