Note 4. Investments

The Company invests in certificates of deposit (“CDs”) that are fully insured by the Federal Deposit Insurance Corporation (“FDIC”) and United States (“U.S.”) Treasury securities with terms of not more than five years, as well as money market funds. Historically, the Company’s investment portfolio had been classified as held-to-maturity and recorded at amortized cost. During the second quarter of fiscal 2022, the Company sold investments and reclassified its investment portfolio to available-for-sale, which is reported at fair value. The unrealized gain or loss on investment securities is recorded in other comprehensive income, net of tax. Realized gains and losses on available-for-sale securities are recognized upon sale and are included in net investment income in the consolidated statement of earnings.

At March 31, 2023, available-for-sale investments consisted of the following:

As of March 31, 2023, investments in debt securities in an unrealized loss position were as follows:

As of March 31, 2023, there were 59 securities in an unrealized loss position which is due to the market paying a higher interest rate than the coupon rate on these securities. As of March 31, 2023, there are no securities which are other than temporarily impaired as the Company intends to hold these securities until their value recovers and there is negligible credit risk due to the nature of the securities which are backed by the FDIC and U.S. federal government.