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TRADING AND AVAILABLE FOR SALE SECURITIES AT FAIR VALUE (Details 3) - USD ($)
3 Months Ended 12 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Available-for-sale Securities    
Purchase of investments that use Level 3 inputs $ 0  
Revaluation of investments that use Level 3 inputs 0  
Available-for-sale securities, Beginning balance 1,000 $ 1,000
Available-for-sale securities, Sale of investments that use Level 3 inputs 0 0
Available-for-sale securities, Ending balance 1,000 1,000
Trading Securities    
Investments Beginning 19,069,000 11,259,000
Sale of investments that use Level 3 inputs 1,907,000 (2,000)
Purchase of investments that use Level 3 inputs 75,000 834,000
Revaluation of investments that use Level 3 inputs 0 6,978,000
Investments ending $ 21,051,000 $ 19,069,000