Note 7 - Short Term Deposits and Investments	6 Months Ended
Sep. 30, 2025
Notes to Financial Statements
Investment [Text Block]	NOTE 7 — SHORT TERM DEPOSITS AND INVESTMENTS As of September 30, 2025 and March 31, 2025, the Company held approximately $0.7 million and approximately $0.9 million, respectively, in short term deposits. These short term deposits had maturity dates of 90 days or less and are classified as cash equivalents. As of September 30, 2025 and March 31, 2025, the Company also held approximately $12.5 million and $14.9 million, respectively, in short term investments which had maturity dates greater than 90 days and are classified as short term investments. Under ASC Topic 820 Fair Value Measurement, the carrying amounts of the Company’s financial instruments, such as cash, short term deposits and short term investments approximate fair values due to the short-term nature of these instruments and are classified under the fair value hierarchy of Level 1.

Note 7 - Short Term Deposits and Investments

6 Months Ended

Sep. 30, 2025

NOTE 7 — SHORT TERM DEPOSITS AND INVESTMENTS

As of September 30, 2025 and March 31, 2025, the Company held approximately $0.7 million and approximately $0.9 million, respectively, in short term deposits. These short term deposits had maturity dates of 90 days or less and are classified as cash equivalents.

As of September 30, 2025 and March 31, 2025, the Company also held approximately $12.5 million and $14.9 million, respectively, in short term investments which had maturity dates greater than 90 days and are classified as short term investments.

Under ASC Topic 820 Fair Value Measurement, the carrying amounts of the Company’s financial instruments, such as cash, short term deposits and short term investments approximate fair values due to the short-term nature of these instruments and are classified under the fair value hierarchy of Level 1.