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Concentrations of credit risk (Details)	12 Months Ended
Concentrations of credit risk (Details)	Dec. 31, 2014	Dec. 31, 2013
Major Customers
Two customers of gross revenue	10.00%fil_TwoCustomersOfGrossRevenue	10.00%fil_TwoCustomersOfGrossRevenue
One vendor purchased of merchandise	10.00%fil_OneVendorPurchasedOfMerchandise	10.00%fil_OneVendorPurchasedOfMerchandise