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Business Concentrations (Detail Textuals) (Single customer)
3 Months Ended 12 Months Ended
Jun. 30, 2013
Revenues
Jun. 30, 2012
Revenues
Jun. 30, 2013
Accounts receivable
Dec. 31, 2012
Accounts receivable
Concentration Risk [Line Items]        
Business concentration, percentage 100.00% 100.00% 100.00% 100.00%