v3.26.1
Segment Reporting and Sales by Major Customer
 3 Months Ended
Jul. 31, 2026
Segment Reporting [Abstract]  
Segment Reporting and Sales by Major Customer Segment Reporting and Sales by Major Customer:
Industry Segmentation
Current Activities - The Company focuses on two primary activities, Professional Services and Aerospace Products.
Aerospace Products:
Aircraft Modifications principally includes the modification of customer owned business-size aircraft with capabilities to perform special missions including provisions for radar systems, aerial photography, search and rescue, environmental research, mapping, intelligence surveillance reconnaissance (ISR), and stability enhancing modifications. Our modifications are primarily to Learjets, Textron Beechcraft, and Textron Cessna aircraft. We also perform other specialized modifications to other unique aircraft. We provide these services through our subsidiary, Avcon Industries, Inc. (“Aircraft Modifications” or “Avcon”). Avcon activities include the high-quality precision manufacturing of machine parts at Butler Machine, LLC.
Special mission electronics principally includes the manufacture, sale, and service of electronics and accessories for control systems used on commercial and government aircraft and vehicles. We provide the products through our subsidiary, Butler National Corporation - Tempe, Arizona.
Butler Avionics sells, installs and troubleshoots aircraft avionics equipment (airplane radio equipment and flight control systems). This includes flight display systems, collision avoidance, terrain awareness instruments, and sensor systems. Butler Avionics is recognized for its troubleshooting and also supports Avcon with the integration and installation of electronics systems to support aircraft missionization.
Professional Services:
Butler National Service Corporation (BNSC) and its wholly owned subsidiary BHCMC provide management services to the Boot Hill Casino, a “state-owned casino.”
Three Months Ended July 31, 2026GamingAircraft ModificationAircraft AvionicsSpecial Mission ElectronicsOtherTotal
Revenues from customers$9,041 $16,301 $537 $4,902 $- $30,781 
Interest expense326 86 - 6 - 418 
Depreciation and amortization691 1,026 13 28 13 1,771 
Operating income (loss)1,925 4,318 (123)2,089 (785)7,424 
Three Months Ended July 31, 2025GamingAircraft ModificationAircraft AvionicsSpecial Mission ElectronicsOtherTotal
Revenues from customers$8,811 $5,642 $1,437 $4,235 $- $20,125 
Interest expense415 98 - 10 - 523 
Depreciation and amortization774 877 7 30 15 1,703 
Operating income (loss)1,782 714 498 1,957 (284)4,667 
Our Chief Operating Decision Maker (CODM) uses the information above to evaluate performance by operating segment and does not evaluate operating segments using asset or liability information.
Major Customers: Revenue from major customers (10 percent or more of consolidated revenue) were as follows:
July 31, 2026July 31, 2025
Number of Customers% of Consolidated RevenueNumber of Customers% of Consolidated Revenue
Aerospace Products226.0%121.0%
Professional Services----
In the three months ended July 31, 2026 the Company derived 33.5% of total revenue from five Aerospace customers. The top two customers provided 15.0% and 11.0% of total revenue while the next top three customers ranged from 1.1% to 2.5%. At July 31, 2026, we had one customer that accounted for 34.7% of our accounts receivable.