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Inventories (Details) - USD ($)
Mar. 31, 2016
Dec. 31, 2015
Inventory [Line Items]    
Jewelry $ 8,514,241 $ 8,365,828
Scrap gold 504,532 506,560
Bullion 974,094 357,644
Rare coins and Other 257,137 335,474
Total $ 10,250,004 $ 9,565,506