Quarterly report pursuant to Section 13 or 15(d)

Short-Term Deposit (Details)

v3.20.1
Short-Term Deposit (Details)
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Short-Term Deposit (Textual)    
Short-term deposits, description Short-term deposits represent time deposits placed with banks with original maturities of greater than three months but less than one year.  
Minimum [Member]    
Short-Term Deposit (Textual)    
Fixed annual interest bearing, percentage 1.00% 0.21%
Maximum [Member]    
Short-Term Deposit (Textual)    
Fixed annual interest bearing, percentage 1.75% 3.63%