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INVESTMENT SECURITIES
12 Months Ended
Mar. 31, 2023
Investments, Debt and Equity Securities [Abstract]  
INVESTMENT SECURITIES Investment Securities
The amortized cost and gross unrealized gains (losses) of marketable investment securities accounted under the fair value method were as follows:
March 31, 2023
Amortized CostGross Unrealized GainsGross Unrealized (Losses)Fair Value
Corporate debt securities$24,936 $$(1,325)$23,617 
U.S. treasury securities13,400 15 (425)12,990 
Common stock768 — (584)184 
Certificates of deposit518 — — 518 
Total securities with unrealized gains/(losses)$39,622 $21 $(2,334)$37,309 
March 31, 2022
Amortized CostGross Unrealized GainsGross Unrealized (Losses)
Fair Value (1)
Corporate debt securities$88,475 $$(1,403)$87,074 
U.S. treasury securities17,891 — (229)17,662 
Certificates of deposit516 — — 516 
Total securities with unrealized gains/(losses)$106,882 $$(1,632)$105,252 
(1)Included within Investment securities in the Consolidated Balance Sheets.
Scheduled maturities of the securities held by the Company included within the investment securities portfolio were as follows:
March 31, 2023March 31, 2022
Amortized CostEstimated Fair ValueAmortized CostEstimated Fair Value
Due within one year$6,243 $6,254 $72,963 $72,950 
Due within years two through five33,379 31,055 33,919 32,302 
Total debt within the investment securities portfolio$39,622 $37,309 $106,882 $105,252