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

Significant Accounting Policies (Details Textual)

v3.20.2
Significant Accounting Policies (Details Textual) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Significant Accounting Policies (Textual)      
Contract liabilities $ 2,677   $ 2,891
Revenue $ 402 $ 688