Inventories - Schedule of Inventories (Details) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Inventory [Line Items]
Jewelry	$ 7,718,365	$ 7,001,477
Scrap gold/silver	1,010,669	1,205,111
Bullion	855,071	801,717
Rare coins and Other	420,155	756,789
Subtotal	10,004,260	9,765,094
Inventories	11,112,806	9,765,094
Echo Environmental, LLC [Member]
Inventory [Line Items]
Electronic components - resale	193,411
Electronic components - recycle	915,135
Subtotal	1,108,546
Inventories	$ 1,209,203

Carrying amount (lower of cost or market) as of the balance sheet date of bullion held in inventory.

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- Definition

Electronic components - recycle.

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- Definition

Electronic components - resale.

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- Definition

Carrying amount (lower of cost or market) as of the balance sheet date of jewelry held in inventory.

+ References

No definition available.

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- Definition

Carrying amount (lower of cost or market) as of the balance sheet date of rare coins and collectibles held in inventory.

+ References

No definition available.

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- Definition

Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-Paragraph 1
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Gross amount of residue from manufacturing or production process that has recovery value.

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