Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details 3)

v3.19.1
Summary of Significant Accounting Policies (Details 3) - USD ($)
Mar. 31, 2019
Dec. 31, 2018
Summary of financial assets and liabilities measured at fair value on a recurring basis    
Short-term investment $ 0 $ 0