Quarterly report pursuant to Section 13 or 15(d)

Liquidity and Plan of Operations (Details Narrative)

v3.23.1
Liquidity and Plan of Operations (Details Narrative) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Dec. 31, 2022
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]    
Accumulated deficit $ (158,144) $ (152,631)
Cash and cash equivalents 5,739  
Marketable securities 19,118 $ 21,933
Restricted cash 250  
Management [Member]    
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]    
Accumulated deficit 158,144  
Net loss $ 5,513