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Fair Value Measurements (Details Narrative) - shares
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member]    
Securities wear transferred in or out
Significant Other Observable Inputs Level 2 [Member]    
Securities wear transferred in or out
Significant Unobservable Inputs (Level 3) [Member]    
Securities wear transferred in or out