v3.26.1
Note 3 - Disaggregation of Revenue - Disaggregated Revenue From External Customers (Details) - USD ($)
 3 Months Ended 6 Months Ended
May 31, 2026
May 31, 2025
May 31, 2026
May 31, 2025
Revenue $ 7,854,000 $ 6,337,000 $ 14,494,000 $ 11,478,000
Agricultural Products [Member]        
Revenue 4,374,000 4,026,000 8,128,000 6,973,000
Modular Buildings [Member]        
Revenue 3,480,000 2,311,000 6,366,000 4,505,000
Farm Equipment [Member]        
Revenue 3,631,000 3,350,000 6,515,000 5,344,000
Farm Equipment [Member] | Agricultural Products [Member]        
Revenue 3,631,000 3,350,000 6,515,000 5,344,000
Farm Equipment [Member] | Modular Buildings [Member]        
Revenue 0 0 0 0
Farm Equipment Service Parts [Member]        
Revenue 670,000 603,000 1,460,000 1,486,000
Farm Equipment Service Parts [Member] | Agricultural Products [Member]        
Revenue 670,000 603,000 1,460,000 1,486,000
Farm Equipment Service Parts [Member] | Modular Buildings [Member]        
Revenue 0 0 0 0
Modular Buildings [Member]        
Revenue 3,452,000 2,227,000 6,332,000 4,346,000
Modular Buildings [Member] | Agricultural Products [Member]        
Revenue 0 0 0 0
Modular Buildings [Member] | Modular Buildings [Member]        
Revenue 3,452,000 2,227,000 6,332,000 4,346,000
Modular Buildings Lease Income [Member]        
Revenue 0 26,000 0 72,000
Modular Buildings Lease Income [Member] | Agricultural Products [Member]        
Revenue 0 0 0 0
Modular Buildings Lease Income [Member] | Modular Buildings [Member]        
Revenue 0 26,000 0 72,000
Product and Service, Other [Member]        
Revenue 101,000 131,000 187,000 230,000
Product and Service, Other [Member] | Agricultural Products [Member]        
Revenue 73,000 73,000 153,000 143,000
Product and Service, Other [Member] | Modular Buildings [Member]        
Revenue $ 28,000 $ 58,000 $ 34,000 $ 87,000