Quarterly report pursuant to Section 13 or 15(d)

SUBSEQUENT EVENTS - funded warrants (Details)

v3.22.2
SUBSEQUENT EVENTS - funded warrants (Details) - $ / shares
Jul. 25, 2022
Jun. 29, 2021
Subsequent Event [Line Items]    
Number of shares issued during the period   2,875,000
Subsequent Event | Affiliate Investors    
Subsequent Event [Line Items]    
Number of shares issued during the period 59,211  
Warrants exercise price $ 3.55  
Subsequent Event | Affiliate Investors | Series A warrants    
Subsequent Event [Line Items]    
Number of shares issued during the period 59,211  
Subsequent Event | Affiliate Investors | Series B warrants    
Subsequent Event [Line Items]    
Number of shares issued during the period 59,211  
Subsequent Event | Investor    
Subsequent Event [Line Items]    
Warrants to purchase shares of common stock 130,769  
Number of shares issued during the period 1,100,000  
Warrants exercise price $ 0.0001  
Subsequent Event | Investor | Series A warrants    
Subsequent Event [Line Items]    
Number of shares issued during the period 1,230,769  
Subsequent Event | Investor | Series B warrants    
Subsequent Event [Line Items]    
Number of shares issued during the period 1,230,769  
Warrants exercise price $ 3.25  
Subsequent Event | Private Placement | Series A warrants    
Subsequent Event [Line Items]    
Warrants to purchase shares of common stock 1,289,980  
Subsequent Event | Private Placement | Series B warrants    
Subsequent Event [Line Items]    
Warrants to purchase shares of common stock 1,289,980