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Note 3 - Disaggregation of Revenue - Disaggregated Revenue From External Customer (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Aug. 31, 2021 | Aug. 31, 2020 | Aug. 31, 2021 | Aug. 31, 2020
Revenue | $ 6,592,000 | $ 6,465,000 | $ 17,703,000 | $ 16,937,000
Farm Equipment [Member] |  |  |  |
Revenue | 3,831,000 | 2,908,000 | 9,723,000 | 7,556,000
Farm Equipment Service Parts [Member] |  |  |  |
Revenue | 749,000 | 645,000 | 2,027,000 | 1,844,000
Steel Cutting Tools and Inserts [Member] |  |  |  |
Revenue | 613,000 | 470,000 | 1,872,000 | 1,648,000
Modular Buildings [Member] |  |  |  |
Revenue | 1,256,000 | 2,266,000 | 3,573,000 | 5,155,000
Product and Service, Other [Member] |  |  |  |
Revenue | 143,000 | 176,000 | 508,000 | 416,000
Modular Buildings Lease Income [Member] |  |  |  |
Revenue |  |  | 0 | 318,000
Agricultural Products [Member] |  |  |  |
Revenue | 4,660,000 | 3,671,000 | 12,017,000 | 9,695,000
Agricultural Products [Member] | Farm Equipment [Member] |  |  |  |
Revenue | 3,831,000 | 2,908,000 | 9,723,000 | 7,556,000
Agricultural Products [Member] | Farm Equipment Service Parts [Member] |  |  |  |
Revenue | 749,000 | 645,000 | 2,027,000 | 1,844,000
Agricultural Products [Member] | Steel Cutting Tools and Inserts [Member] |  |  |  |
Revenue | 0 | 0 | 0 | 0
Agricultural Products [Member] | Modular Buildings [Member] |  |  |  |
Revenue | 0 | 0 | 0 | 0
Agricultural Products [Member] | Product and Service, Other [Member] |  |  |  |
Revenue | 80,000 | 118,000 | 267,000 | 295,000
Agricultural Products [Member] | Modular Buildings Lease Income [Member] |  |  |  |
Revenue |  |  | 0 | 0
Modular Buildings [Member] |  |  |  |
Revenue | 1,313,000 | 2,319,000 | 3,798,000 | 5,575,000
Modular Buildings [Member] | Farm Equipment [Member] |  |  |  |
Revenue | 0 | 0 | 0 | 0
Modular Buildings [Member] | Farm Equipment Service Parts [Member] |  |  |  |
Revenue | 0 | 0 | 0 | 0
Modular Buildings [Member] | Steel Cutting Tools and Inserts [Member] |  |  |  |
Revenue | 0 | 0 | 0 | 0
Modular Buildings [Member] | Modular Buildings [Member] |  |  |  |
Revenue | 1,256,000 | 2,266,000 | 3,573,000 | 5,155,000
Modular Buildings [Member] | Product and Service, Other [Member] |  |  |  |
Revenue | 57,000 | 53,000 | 225,000 | 102,000
Modular Buildings [Member] | Modular Buildings Lease Income [Member] |  |  |  |
Revenue |  |  | 0 | 318,000
Tools [Member] |  |  |  |
Revenue | 619,000 | 475,000 | 1,888,000 | 1,667,000
Tools [Member] | Farm Equipment [Member] |  |  |  |
Revenue | 0 | 0 | 0 | 0
Tools [Member] | Farm Equipment Service Parts [Member] |  |  |  |
Revenue | 0 | 0 | 0 | 0
Tools [Member] | Steel Cutting Tools and Inserts [Member] |  |  |  |
Revenue | 613,000 | 470,000 | 1,872,000 | 1,648,000
Tools [Member] | Modular Buildings [Member] |  |  |  |
Revenue | 0 | 0 | 0 | 0
Tools [Member] | Product and Service, Other [Member] |  |  |  |
Revenue | $ 6,000 | $ 5,000 | 16,000 | 19,000
Tools [Member] | Modular Buildings Lease Income [Member] |  |  |  |
Revenue |  |  | $ 0 | $ 0

X
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