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TRADING AND AVAILABLE FOR SALE SECURITIES AT FAIR VALUE (Details 4) - USD ($)
12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Assets measured at amortized cost $ 1,000 $ 6,509,000
Unrealized gain accumulated in other comprehensive income 0 (71,000)
Assets measured at fair value 1,000 6,438,000
Certificate of deposit    
Assets measured at amortized cost   5,050,000
Unrealized gain accumulated in other comprehensive income   26,000
Assets measured at fair value 0 5,076,000
Mutual investment funds    
Assets measured at amortized cost   696,000
Unrealized gain accumulated in other comprehensive income   (24,000)
Assets measured at fair value 0 672,000
Debt securities    
Assets measured at amortized cost   456,000
Unrealized gain accumulated in other comprehensive income   (51,000)
Assets measured at fair value 0 405,000
Preferred Shares    
Assets measured at amortized cost   306,000
Unrealized gain accumulated in other comprehensive income   (22,000)
Assets measured at fair value 0 284,000
Equity securities    
Assets measured at amortized cost 1,000 1,000
Unrealized gain accumulated in other comprehensive income 0 0
Assets measured at fair value $ 1,000 $ 1,000