INVESTMENTS	3 Months Ended
Jul. 31, 2026
Schedule of Investments [Abstract]
Investment Holdings [Text Block]	NOTE H – INVESTMENTS Morion, Inc. The Company has an investment in Morion, Inc. (“Morion”), a privately-held Russian company, which manufactures high precision quartz resonators and crystal oscillators. The Company has also previously licensed certain technology to Morion. The Company’s investment consists of 4.6% of Morion’s outstanding shares. However, due to the Russia-Ukraine conflict and resulting sanctions, the future status of FEI’s investment in Morion became uncertain and accordingly, such investment was entirely written off in fiscal year 2022. Accordingly, the carrying value of this investment was $0 as of July 31, 2026 and April 30, 2026. During the three months ended July 31, 2026 and 2025, the Company did not acquire any product from Morion. During the three months ended July 31, 2026 and 2025, the Company did not receive dividends from Morion. Prior purchases of materials from Morion consisted primarily of quartz crystal blanks, which were used in the fabrication of quartz resonators. However, on October 30, 2024, the U.S. Department of Treasury’s Office of Foreign Assets Control designated Morion as a Specially Designated National, resulting in the blocking of all Morion property and property interests. As a result, the Company has terminated all commercial relationships with Morion, including the licensing of technology to Morion and the purchase of any products from Morion. The Company has established alternate sources of supply with respect to items previously acquired from Morion. The Company is also capable of fabricating the crystal blanks in-house. Temporis Solutio Temporis Solutio (“Temporis”) is a company that has the sole commercialization license to a patented digital signal processing measurement technique to remove systematic electronics noise from precision timing measurements. On July 1, 2026 the Company acquired a 25% minority interest in Temporis for $0.5 million. The Company accounted for this transaction as an equity method investment under ASC 323. The Company may be required to purchase additional interest in Temporis upon capital call notices from the investee. There were no capital call notices received from the investee during the three months ended July 31, 2026.

INVESTMENTS

3 Months Ended

Jul. 31, 2026

NOTE H – INVESTMENTS

Morion, Inc.

The Company has an investment in Morion, Inc. (“Morion”), a privately-held Russian company, which manufactures high precision quartz resonators and crystal oscillators. The Company has also previously licensed certain technology to Morion.

The Company’s investment consists of 4.6% of Morion’s outstanding shares. However, due to the Russia-Ukraine conflict and resulting sanctions, the future status of FEI’s investment in Morion became uncertain and accordingly, such investment was entirely written off in fiscal year 2022. Accordingly, the carrying value of this investment was $0 as of July 31, 2026 and April 30, 2026.

During the three months ended July 31, 2026 and 2025, the Company did not acquire any product from Morion. During the three months ended July 31, 2026 and 2025, the Company did not receive dividends from Morion.

Prior purchases of materials from Morion consisted primarily of quartz crystal blanks, which were used in the fabrication of quartz resonators. However, on October 30, 2024, the U.S. Department of Treasury’s Office of Foreign Assets Control designated Morion as a Specially Designated National, resulting in the blocking of all Morion property and property interests. As a result, the Company has terminated all commercial relationships with Morion, including the licensing of technology to Morion and the purchase of any products from Morion. The Company has established alternate sources of supply with respect to items previously acquired from Morion. The Company is also capable of fabricating the crystal blanks in-house.

Temporis Solutio

Temporis Solutio (“Temporis”) is a company that has the sole commercialization license to a patented digital signal processing measurement technique to remove systematic electronics noise from precision timing measurements.

On July 1, 2026 the Company acquired a 25% minority interest in Temporis for $0.5 million. The Company accounted for this transaction as an equity method investment under ASC 323. The Company may be required to purchase additional interest in Temporis upon capital call notices from the investee. There were no capital call notices received from the investee during the three months ended July 31, 2026.