Quarterly report pursuant to Section 13 or 15(d)

Note 1 - The Company and Summary of Significant Accounting Policies (Details Narrative)

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Note 1 - The Company and Summary of Significant Accounting Policies (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Accounting Policies [Abstract]        
Accumulated deficit $ (569,040)   $ (567,332)  
Cash and cash equivalent $ 5 $ 51 $ 28 $ 60
Diluted shares excluded from calcuation of EPS 87,120,470 22,731,781    
Research and development $ 324 $ 834