Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (unaudited) (Parenthetical)

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CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (unaudited) (Parenthetical) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Stock Issuance January and March 2022 [Member]    
Class of Stock [Line Items]    
Transactional expenses $ 507  
Stock Issuance March 2021 [Member]    
Class of Stock [Line Items]    
Warrants exercised price   $ 0.57
Stock Issuance January 2021 [Member]    
Class of Stock [Line Items]    
Transactional expenses   $ 3,096
Price per share   $ 0.80
Stock Issuance February 2021 [Member]    
Class of Stock [Line Items]    
Transactional expenses   $ 5,002
Price per share   $ 1.20
At-the-Market Offering [Member]    
Class of Stock [Line Items]    
Transactional expenses   $ 230