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Summary of Significant Accounting Policies (Details 3) - USD ($)
Mar. 31, 2018
Mar. 31, 2017
Carried at (amortized) cost:    
Corporate debt securities $ 4,744,328
Level 1 [Member]    
Carried at (amortized) cost:    
Corporate debt securities
Level 2 [Member]    
Carried at (amortized) cost:    
Corporate debt securities
Level 3 [Member]    
Carried at (amortized) cost:    
Corporate debt securities $ 4,744,328