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Note 15 - Noncontrolling Interest (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Oct. 31, 2025 | Oct. 31, 2024 | Oct. 31, 2025 | Oct. 31, 2024 | Jan. 31, 2025 | Jun. 01, 2023
Assets | $ 216,985 |  | $ 216,985 |  | $ 165,241 |
Net Income (Loss) Attributable to Noncontrolling Interest | 1,599 | $ 962 | 2,913 | $ 2,303 |  |
Redeemable Noncontrolling Interest, Equity, Carrying Amount | 14,235 |  | 14,235 |  | 10,967 |
Gulf Insulation Group [Member] |  |  |  |  |  |
Net Income (Loss) Attributable to Noncontrolling Interest | 1,600 | $ 1,000 | 2,900 | $ 2,300 |  |
Redeemable Noncontrolling Interest, Equity, Carrying Amount | 14,200 |  | 14,200 |  | 11,000 |
Noncontrolling Interest, Adjustments to Redeemable Noncontrolling interest |  |  | 400 |  |  |
Related Party [Member] |  |  |  |  |  |
Assets | 44,800 |  | 44,800 |  | 39,100 |
Liabilities | $ 21,400 |  | $ 21,400 |  | $ 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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