Annual report pursuant to Section 13 and 15(d)

Derivative Warrants Liability (Details Narrative)

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Derivative Warrants Liability (Details Narrative) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2016
Dec. 31, 2015
Proceeds from warrants $ 2,390      
Stock issued during the period, shares 2,164,502        
Estimated fair value of warrant liability $ 301 $ 752 $ 28    
Warrants exercised   2,477,500      
Warrant [Member]          
Stock issued during the period, shares     600,000 4,518,406 3,106,000
Warrants exercised 3,351,586 20,896,789      
Private Placement [Member]          
Proceeds from warrants     $ 20 $ 244 $ 168
Private Placement [Member] | Convertible Bridge Loans Transactions [Member]          
Proceeds from warrants   $ 205      
Estimated fair value of warrant liability $ 247 $ 741      
Warrants exercised   79