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Organization and Summary of Significant Accounting Policies - Accrued Expenses (Details) - USD ($)
Mar. 31, 2020
Dec. 31, 2019
Accounting Policies [Abstract]    
Employee wages and benefits $ 162,310 $ 474,388
Research and development expenses 20,035 69,795
Other 57,658 21,820
Accrued expenses $ 240,003 $ 566,003