Note 4.  Investments

Money market funds, where quoted prices are available in an active market, are classified within level 1 of the valuation hierarchy. The Company invested in a money market fund which had a fair value of $5,598,642 and $5,500,903 at June 30, 2026 and December 31, 2025, respectively. This is valued at original cost plus interest and is included in cash and cash equivalents on the balance sheets.  

Note 4.  Investments (continued)

As of June 30, 2026 and December 31, 2025, the Company held investments in corporate bonds rated BBB+ or higher, and U.S. government securities that are required to be measured for disclosure purposes at fair value on a recurring basis. The bonds and government securities are considered held-to-maturity and are recorded at amortized cost on the balance sheet. These investments are considered level 2 as detailed in the table below. The Company considers investments which will mature in the next twelve months and interest receivable on the long-term bonds as current assets. The remaining investments are considered non-current assets including the investment in marketable securities which the Company intends to hold longer than twelve months. The fair value of these investments was estimated using recently executed transactions and market price quotations. At June 30, 2026, the length of time until maturity of the bonds currently owned ranged from 4 to 30 months. The amortized cost, allowance for credit losses, fair value, and the related unrecognized gains and losses of these investments, were as follows:

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The Company uses an “expected credit loss” measurement objective for the recognition of credit losses for held-to-maturity securities at the time the financial asset is originated or acquired. The Company monitors the credit quality of debt securities classified as held-to-maturity using their respective credit ratings and updates them on a quarterly basis with the latest assessment completed on June 30, 2026. Our allowance for credit losses was $1,000 at June 30, 2026 and December 31, 2025, respectively. Expected credit losses are adjusted each period as necessary for changes in expected lifetime credit losses. The credit loss calculations for held-to-maturity securities are based upon historical default and recovery rates of bonds rated with the same rating as the current portfolio. An adjustment factor is applied to these credit loss calculations based upon management’s assessment of the expected impact from current economic conditions on our investments.