Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Summary of Components of Marketable Securities (Details)

v3.20.1
Summary of Significant Accounting Policies - Summary of Components of Marketable Securities (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Amortized Cost   $ 928
Unrealized Losses   (2)
Fair Value $ 840 926
U.S. Government Obligations [Member]    
Amortized Cost 829 125
Unrealized Gains 11  
Unrealized Losses  
Fair Value $ 840 125
Corporate Obligations [Member]    
Amortized Cost   803
Unrealized Losses   (2)
Fair Value   $ 801