5.           Intangibles, net

​

The components of intangibles are as follows (in thousands):

​

​

The weighted average amortization period at April 30, 2026 and 2025 was 6 years. Amortization expense for the years ended April 30, 2026, 2025 and 2024 was $203,984,000, $23,391,000 and $17,954,000, respectively.

​

In January 2026, a stop-work order was received on the Company’s OTA for the delivery of BADGER phased array antenna systems to support Space Force’s Satellite Communication Augmentation Resource (“SCAR”) program. Additionally, in March 2026, the customer terminated the agreement for convenience. The Company concluded that the stop-work order represented a trigger event that indicated the carrying value of the Space reporting unit exceeded its fair value. Due to the trigger event, the Company performed a recoverability test on the long-lived assets of the Space reporting unit, inclusive of the intangibles, for impairment in accordance with ASC 360. The undiscounted cash flows exceeded the carrying value and no impairment was recorded for long-lived assets.

​

As part of the Company’s annual goodwill impairment and identifiable assets test during the fiscal quarter ended April 30, 2025, a decrease in forecasted results of the UGV reporting unit resulted in accelerated intangible amortization expenses of $4,258,000, or loss per diluted share of $0.12, which was during the three months ended April 30, 2025. Refer to Note 6—Goodwill for further details.

​

Customer relationships, backlog, technology, non-compete agreements, and tradename intangibles were recognized in conjunction with the Company’s acquisition of ESAero on March 16, 2026. Technology, backlog and customer relationships intangibles were recognized in conjunction with the Company’s acquisition of Blue Halo on May 1, 2025. Refer to Note 19—Business Acquisitions for further details.

​

Estimated amortization expense for the next five years is as follows (in thousands):

​