Quarterly report pursuant to Section 13 or 15(d)

SUBSEQUENT EVENTS - Purchase Agreements (Details)

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SUBSEQUENT EVENTS - Purchase Agreements (Details) - USD ($)
Jul. 25, 2022
Jun. 29, 2021
Jun. 30, 2022
Dec. 31, 2021
Subsequent Event [Line Items]        
Number of shares issued during the period   2,875,000    
Common stock, par value     $ 0.001 $ 0.001
Subsequent Event | Affiliate Investors        
Subsequent Event [Line Items]        
Number of shares issued during the period 59,211      
Purchase price $ 3.80      
Warrants exercise price $ 3.55      
Subsequent Event | Investor        
Subsequent Event [Line Items]        
Number of shares issued during the period 1,100,000      
Purchase price $ 3.25      
Warrants to purchase shares of common stock 130,769      
Purchase price per pre-funded warrant $ 3.2499      
Warrants exercise price $ 0.0001      
Subsequent Event | Registered direct offering        
Subsequent Event [Line Items]        
Number of shares issued during the period 1,159,211      
Common stock, par value $ 0.001      
Warrants to purchase shares of common stock 130,769      
Warrants exercise price $ 3.60      
Gross proceeds from registered direct offering $ 4,200,000      
Net proceeds from registered direct offering $ 3,700,000