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TRADING AND AVAILABLEFORSALE SECURITIES AT FAIR VALUE (Details 4) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Mar. 31, 2020
Assets measured at amortized cost | $ 1 | $ 6,509
Unrealized gain accumulated in other comprehensive income | 0 | (71)
Assets measured at fair value | 1 | 6,438
Certificate of deposit |  |
Assets measured at amortized cost |  | 5,050
Unrealized gain accumulated in other comprehensive income |  | 26
Assets measured at fair value | 0 | 5,076
Preferred Shares [Member] |  |
Assets measured at amortized cost |  | 306
Unrealized gain accumulated in other comprehensive income |  | (22)
Assets measured at fair value | 0 | 284
Debt securities |  |
Assets measured at amortized cost |  | 456
Unrealized gain accumulated in other comprehensive income |  | (51)
Assets measured at fair value | 0 | 405
Mutual investment funds |  |
Assets measured at amortized cost |  | 696
Unrealized gain accumulated in other comprehensive income |  | (24)
Assets measured at fair value | 0 | 672
Corporate debt |  |
Assets measured at amortized cost | 1 | 1
Unrealized gain accumulated in other comprehensive income | 0 | 0
Assets measured at fair value | $ 1 | $ 1

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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References No definition available. + Details
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- Definition Amount of unrealized gain before deducting unrealized loss on investments in debt and equity securities classified as available-for-sale securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563 + Details
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