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Inventories - Schedule of Inventories (Details) - USD ($) | Dec. 31, 2019 | Dec. 31, 2018
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Inventory [Line Items] |  |
Jewelry | $ 6,785,426 | $ 7,001,477
Scrap gold/silver | 452,707 | 1,205,111
Bullion | 151,345 | 801,717
Rare coins and Other | 1,225,541 | 756,789
Subtotal | 8,615,019 | 9,765,094
Inventories | 9,509,454 | 9,765,094
Echo Environmental, LLC [Member] |  |
Inventory [Line Items] |  |
Electronic components - resale | 361,126 |
Electronic components - recycle | 533,309 |
Subtotal | $ 894,435 |

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