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Inventories (Details) - USD ($) | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Inventories | $ 11,630,383 | $ 10,006,897
DGSE |  |
Inventories | 9,272,221 | 9,163,492
DGSE | Resale |  |
Inventories | 9,184,314 | 8,971,815
DGSE | Recycle |  |
Inventories | 87,907 | 191,677
ECHG |  |
Inventories | 2,358,162 | 843,405
ECHG | Resale |  |
Inventories | 1,962,929 | 557,959
ECHG | Recycle |  |
Inventories | $ 395,233 | $ 285,446

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- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed 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 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765 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(a)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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