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Line of Credit (Details)
9 Months Ended
Sep. 30, 2015
USD ($)
Line of Credit  
Line of credit, available borrowing capacity $ 7,500,000
Line of credit, interest rate description 30-day LIBOR
Line of credit, basis spread on variable rate 2.00%
Line of credit, interest rate percentage 2.19%
Line of credit outstanding amount $ 0