Inventories (Details) - USD ($) |
Dec. 31, 2017 |
Dec. 31, 2016 |
|---|---|---|
| Inventory [Line Items] | ||
| Jewelry | $ 6,344,948 | $ 7,193,126 |
| Scrap Gold | 1,512,156 | 885,194 |
| Bullion | 414,867 | 292,591 |
| Rare Coins and Other | 325,719 | 1,013,225 |
| Total | $ 8,597,690 | $ 9,384,136 |
| X | ||||||||||
- Definition Carrying amount (lower of cost or market) as of the balance sheet date of bullion held in inventory. No definition available.
|
| X | ||||||||||
- Definition Carrying amount (lower of cost or market) as of the balance sheet date of jewelry held in inventory. No definition available.
|
| X | ||||||||||
- Definition Carrying amount (lower of cost or market) as of the balance sheet date of rare coins and collectibles held in inventory. No definition available.
|
| X | ||||||||||
- Definition 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. No definition available.
|
| X | ||||||||||
- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Gross amount of residue from manufacturing or production process that has recovery value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|