XML 32 R21.htm IDEA: XBRL DOCUMENT v3.7.0.1
Inventories (Details) - USD ($)
Mar. 31, 2017
Dec. 31, 2016
Inventory [Line Items]    
Jewelry $ 8,501,740 $ 7,193,126
Scrap gold 552,267 885,194
Bullion 321,156 292,591
Rare coins and Other 165,414 1,013,225
Total $ 9,540,577 $ 9,384,136