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Inventory (Details) (USD $)
Sep. 30, 2012
Dec. 31, 2011
Schedule of inventory    
Artifacts $ 5,785,769 $ 5,879,137
Packaging 141,143 159,160
Merchandise 389,053 412,865
Merchandise reserve (380,593) (392,203)
Total inventory $ 5,935,372 $ 6,058,959