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Note 15 - Noncontrolling Interest (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jul. 31, 2025 | Jul. 31, 2024 | Jul. 31, 2025 | Jul. 31, 2024 | Jan. 31, 2025 | Jun. 01, 2023
Assets | $ 188,990 |  | $ 188,990 |  | $ 165,241 |
Net Income (Loss) Attributable to Noncontrolling Interest | 411 | $ 995 | 1,313 | $ 1,341 |  |
Redeemable Noncontrolling Interest, Equity, Carrying Amount | 12,225 |  | 12,225 |  | 10,967 |
Gulf Insulation Group [Member] |  |  |  |  |  |
Net Income (Loss) Attributable to Noncontrolling Interest | 400 | $ 1,000 | 1,300 | $ 1,300 |  |
Redeemable Noncontrolling Interest, Equity, Carrying Amount | 12,200 |  | 12,200 |  | 11,000 |
Noncontrolling Interest, Adjustments to Redeemable Noncontrolling interest |  |  | (100) |  |  |
Related Party [Member] |  |  |  |  |  |
Assets | 39,800 |  | 39,800 |  | 39,100 |
Liabilities | $ 19,900 |  | $ 19,900 |  | $ 22,100 |
Joint Venture [Member] |  |  |  |  |  |
Subsidiary, Ownership Percentage, Parent |  |  |  |  |  | 60.00%
Joint Venture [Member] | Gulf Insulation Group [Member] |  |  |  |  |  |
Subsidiary, Ownership Percentage, Parent |  |  |  |  |  | 40.00%

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