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Going Concern (Details) - USD ($)
Mar. 31, 2017
Dec. 31, 2016
Sep. 01, 2016
Dec. 31, 2015
Going Concern        
Maximum borrowing capacity $ 35,000,000   $ 40,000,000  
Credit facility        
Going Concern        
Maximum borrowing capacity   $ 40,000,000    
Outstanding borrowings   $ 25,250,000   $ 31,500,000