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INVESTMENT SECURITIES (Tables)
6 Months Ended
Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]  
Schedule of Amortized Cost, Gross Unrealized Gains and Losses, and Fair Value of Securities
The amortized cost and gross unrealized gains (losses) of marketable investment securities accounted under the fair value method were as follows:
September 30, 2023
Amortized CostGross Unrealized GainsGross Unrealized (Losses)
Fair Value (1)
Corporate debt securities$21,863 $$(1,361)$20,505 
U.S. treasury securities10,723 — (537)10,186 
Certificates of deposit523 — — 523 
Total securities with unrealized gains/(losses)$33,109 $$(1,898)$31,214 

March 31, 2023
Amortized CostGross Unrealized GainsGross Unrealized (Losses)
Fair Value (1)
Corporate debt securities$24,936 $$(1,325)$23,617 
U.S. treasury securities13,400 15 (425)12,990 
Common stock768 — (584)184 
Certificates of deposit518 — — 518 
Total securities with unrealized gains/(losses)$39,622 $21 $(2,334)$37,309 
Schedule of Maturities of Debt Securities
Scheduled maturities of the debt securities held by the Company included within the investment securities portfolio were as follows:
September 30, 2023March 31, 2023
Amortized CostEstimated Fair ValueAmortized CostEstimated Fair Value
Due within one year$3,969 $3,927 $6,243 $6,254 
Due within years two through five29,140 27,287 33,379 31,055 
Total debt within the investment securities portfolio$33,109 $31,214 $39,622 $37,309