Note 1 - Summary of Significant Accounting Policies - Disaggregated Revenue From External Customer (Details) - USD ($)	12 Months Ended
	Nov. 30, 2024	Nov. 30, 2023
Revenue	$ 24,499,000	$ 30,281,000
Farm Equipment [Member]
Revenue	12,404,000	19,188,000
Farm Equipment Service Parts [Member]
Revenue	1,947,000	2,886,000
Modular Buildings [Member]
Revenue	9,386,000	7,590,000
Modular Buildings Lease Income [Member]
Revenue	203,000	112,000
Product and Service, Other [Member]
Revenue	559,000	505,000
Agricultural Products [Member]
Revenue	14,663,000	22,467,000
Agricultural Products [Member] | Farm Equipment [Member]
Revenue	12,404,000	19,188,000
Agricultural Products [Member] | Farm Equipment Service Parts [Member]
Revenue	1,947,000	2,886,000
Agricultural Products [Member] | Modular Buildings [Member]
Revenue	0	0
Agricultural Products [Member] | Modular Buildings Lease Income [Member]
Revenue	0	0
Agricultural Products [Member] | Product and Service, Other [Member]
Revenue	312,000	393,000
Modular Buildings [Member]
Revenue	9,836,000	7,814,000
Modular Buildings [Member] | Farm Equipment [Member]
Revenue	0	0
Modular Buildings [Member] | Farm Equipment Service Parts [Member]
Revenue	0	0
Modular Buildings [Member] | Modular Buildings [Member]
Revenue	9,386,000	7,590,000
Modular Buildings [Member] | Modular Buildings Lease Income [Member]
Revenue	203,000	112,000
Modular Buildings [Member] | Product and Service, Other [Member]
Revenue	$ 247,000	$ 112,000