General form of registration statement for all companies including face-amount certificate companies

Summary of Significant Accounting Policies (Details Narrative)

v3.20.2
Summary of Significant Accounting Policies (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Accounting Policies [Abstract]          
Accumulated deficit $ (569,040)   $ (567,332) $ (528,685)  
Cash and cash equivalent 5 $ 51 28 60 $ 576
Research and development costs $ 324 $ 834 $ 1,667 $ 9,067