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Summary of Significant Accounting Policies Inventory (Details) - USD ($) | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Inventory [Line Items] |  |
Inventory, Raw Materials, Gross | $ 1,154,000 | $ 3,182,000
Inventory, Work in Process, Gross | 2,185,000 | 153,000
Inventory, Finished Goods, Net of Reserves | 650,000 |
Inventory, Finished Goods, Gross |  | 908,000
Inventory, Gross | $ 3,989,000 | $ 4,243,000

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