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

The Company and Summary of Significant Accounting Policies (Details Narrative)

v3.20.2
The Company and 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
Diluted shares excluded from calcuation of EPS 87,120,470 22,731,781 86,970,470 8,682,368  
Research and development $ 324 $ 834 $ 1,667 $ 9,067