| Intangible Asset and Goodwill [Text Block] |
Note 6. Goodwill and Intangible Assets
The Company has recognized goodwill and certain intangible assets in connection with prior business combinations.
There were no triggering events during the six months ended April 30, 2026. The Company will continue to evaluate its goodwill and intangible assets in future quarters.
The following table summarizes the composition of intangible assets as of April 30, 2026 and October 31, 2025:
| | | As of April 30, | |
| | | 2026 | |
| | | Weighted Average | | | Gross | | | | | | | | | | | Foreign Currency | | | Net | |
| | | Remaining Life | | | Carrying | | | Accumulated | | | Accumulated | | | Translation | | | Carrying | |
| (in thousands) | | (in Years) | | | Value | | | Impairment | | | Amortization | | | Adjustment | | | Amount | |
| Intangibles subject to amortization: | | | | | | | | | | | | | | | | | | | | | | | | |
| Customer relationship | | | 8.2 | | | $ | 199,125 | | | $ | - | | | $ | (159,634 | ) | | $ | 1,507 | | | $ | 40,998 | |
| Trade name | | | 2.6 | | | | 5,097 | | | | - | | | | (4,013 | ) | | | 397 | | | | 1,481 | |
| Assembled workforce | | | - | | | | 1,650 | | | | - | | | | (1,650 | ) | | | - | | | | - | |
| Noncompete agreements | | | 2.1 | | | | 1,467 | | | | - | | | | (913 | ) | | | 4 | | | | 558 | |
| Indefinite-lived intangible assets: | | | | | | | | | | | | | | | | | | | | | | | | |
| Trade names (indefinite life) | | | | | | | 56,500 | | | | (5,000 | ) | | | - | | | | 19 | | | | 51,519 | |
| Total intangibles | | | | | | $ | 263,839 | | | $ | (5,000 | ) | | $ | (166,210 | ) | | $ | 1,927 | | | $ | 94,556 | |
| | | As of October 31, | |
| | | 2025 | |
| | | Weighted Average | | | Gross | | | | | | | | | Foreign Currency | | | Net | |
| | | Remaining Life | | | Carrying | | | Accumulated | | | Accumulated | | | Translation | | | Carrying | |
| (in thousands) | | (in Years) | | | Value | | | Impairment | | | Amortization | | | Adjustment | | | Amount | |
| Intangibles subject to amortization: | | | | | | | | | | | | | | | | | | | | | | | | |
| Customer relationship | | | 8.1 | | | $ | 195,126 | | | $ | - | | | $ | (155,113 | ) | | $ | 1,302 | | | $ | 41,315 | |
| Trade name | | | 3.1 | | | | 5,097 | | | | - | | | | (3,731 | ) | | | 343 | | | | 1,709 | |
| Assembled workforce | | | 0.3 | | | | 1,650 | | | | - | | | | (1,628 | ) | | | - | | | | 22 | |
| Noncompete agreements | | | 2.0 | | | | 1,200 | | | | - | | | | (813 | ) | | | - | | | | 387 | |
| Indefinite-lived intangible assets: | | | | | | | | | | | | | | | | | | | | | | | | |
| Trade names (indefinite life) | | | | | | | 55,500 | | | | (5,000 | ) | | | - | | | | - | | | | 50,500 | |
| Total intangibles | | | | | | $ | 258,573 | | | $ | (5,000 | ) | | $ | (161,285 | ) | | $ | 1,645 | | | $ | 93,933 | |
Amortization expense for the three months ended April 30, 2026 and 2025 was $2.4 million and $3.1 million, respectively. Amortization expense for the six months ended April 30, 2026 and 2025 was $4.9 million and $6.1 million, respectively.
The changes in the carrying value of goodwill by reportable segment for the six months ended April 30, 2026 are as follows:
| (in thousands) | | U.S. Concrete Pumping | | | U.K. Operations | | | U.S. Concrete Waste Management Services | | | Total | |
| Balance as of October 31, 2025 | | $ | 147,482 | | | $ | 26,966 | | | $ | 49,133 | | | $ | 223,581 | |
| Foreign currency translation | | | - | | | | 901 | | | | - | | | | 901 | |
| Balance as of April 30, 2026 | | $ | 147,482 | | | $ | 27,867 | | | $ | 49,133 | | | $ | 224,482 | |
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