Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Fair Value Measurements (Details)

v3.20.1
Fair Value Measurements (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Level 1 [Member]    
Short-term investment $ 64 $ 273
Total financial assets 64 273
Level 2 [Member]    
Short-term investment
Total financial assets
Level 3 [Member]    
Short-term investment
Total financial assets
Fair Value [Member]    
Short-term investment 64 273
Total financial assets $ 64 $ 273