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Note 15 - Noncontrolling Interest (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2025	Apr. 30, 2024	Jan. 31, 2025	Jun. 01, 2023
Assets	$ 178,315	$ 155,740	$ 165,241
Net Income (Loss) Attributable to Noncontrolling Interest	902	347
Redeemable Noncontrolling Interest, Equity, Carrying Amount	12,238		10,967
Gulf Insulation Group [Member]
Net Income (Loss) Attributable to Noncontrolling Interest	900	$ 300
Redeemable Noncontrolling Interest, Equity, Carrying Amount	12,200		11,000
Noncontrolling Interest, Increase from Business Combination	400
Related Party [Member]
Assets	39,600		39,100
Liabilities	$ 20,600		$ 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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