Note 3 - Disaggregation of Revenue - Disaggregated Revenue From External Customers (Details) - USD ($)	3 Months Ended
	Feb. 28, 2026	Feb. 28, 2025
Revenue	$ 6,640,000	$ 5,141,000
Agricultural Products [Member]
Revenue	3,754,000	2,948,000
Modular Buildings [Member]
Revenue	2,886,000	2,193,000
Farm Equipment [Member]
Revenue	2,884,000	1,994,000
Farm Equipment [Member] | Agricultural Products [Member]
Revenue	2,884,000	1,994,000
Farm Equipment [Member] | Modular Buildings [Member]
Revenue	0	0
Farm Equipment Service Parts [Member]
Revenue	790,000	883,000
Farm Equipment Service Parts [Member] | Agricultural Products [Member]
Revenue	790,000	883,000
Farm Equipment Service Parts [Member] | Modular Buildings [Member]
Revenue	0	0
Modular Buildings [Member]
Revenue	2,881,000	2,119,000
Modular Buildings [Member] | Agricultural Products [Member]
Revenue	0	0
Modular Buildings [Member] | Modular Buildings [Member]
Revenue	2,881,000	2,119,000
Modular Buildings Lease Income [Member]
Revenue	0	46,000
Modular Buildings Lease Income [Member] | Agricultural Products [Member]
Revenue	0	0
Modular Buildings Lease Income [Member] | Modular Buildings [Member]
Revenue	0	46,000
Product and Service, Other [Member]
Revenue	85,000	99,000
Product and Service, Other [Member] | Agricultural Products [Member]
Revenue	80,000	71,000
Product and Service, Other [Member] | Modular Buildings [Member]
Revenue	$ 5,000	$ 28,000