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Summary of Significant Accounting Policies Inventory (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Accounting Policies [Abstract] |  |
Inventory, Raw Materials, Gross | $ 3,182 | $ 3,564
Inventory, Work in Process, Gross | 153 | 232
Inventory, Finished Goods, Gross | 908 | 884
Inventory, Gross | $ 4,243 | 4,680
Prior Year Reclass of Accrual |  | $ 5,700

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- Definition Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer. + References Reference 1: 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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