SUBSEQUENT EVENTS (Details) - Subsequent Events - USD ($)
1 Months Ended
Apr. 01, 2021
Apr. 30, 2021
Chardan    
Subsequent Event [Line Items]    
Stock purchase option exercised   247,500
Chardan | Common Stock    
Subsequent Event [Line Items]    
Stock issued during period shares   167,252
Aircraft Purchase Agreement    
Subsequent Event [Line Items]    
Aggregate purchase price $ 12,000,000  
Amount of non-refundable deposit 500,000  
Amount of recover its deposits and liquidated damges $ 250,000