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Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2018
Summary of Significant Accounting Policies [Abstract] |
Inventory, Major Classes, Policy [Policy Text Block] |
|  | As of June 30, |  | As of December 31,
|  | 2018 |  | 2017
|  | (in thousands)
Raw materials |  | $ | 961 |  |  | $ | 616 |
Work-in-process |  | 131 |  |  | 149 |
Finished goods |  | 1,050 |  |  | 1,183 |
Total inventory |  | $ | 2,142 |  |  | $ | 1,948 |

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- Definition Summary of Significant Accounting Policies [Abstract] + References No definition available. + Details
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- Definition Disclosure of accounting policy for the major categories of inventory such as finished goods, inventoried costs relating to long-term contracts or programs, work in process, raw materials, and supplies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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